Also, I'm not sure what you mean by the following which I highlighted above....here:
Alright, I'll give some explanation to it:
They just do whatever they think is ok and all of a sudden they are getting in trouble with grownups because the grown up doesn't know that they have done an innocent thing wrong.
Grown-ups already know the ways of the world, but children need to learn those things. There is no such thing as fences and boundaries in nature, and neither is there any concept of money. The concept of ownership comes about as a result of scarcity and sin insofaras the one who takes what another person needs when he doesn't need it himself, it causes suffering. So the world has constructed a whole system of guarding the rights of each member so as to try and maintain some civilisation. Children don't have any of that instinctively though because they are simply pure in knowledge. So when the grown-up sees that the child is breaking a social construct, they need to educate the child, but what happens in the moment of wrath is that the grown-up punishes the child and the child cries because it's "so unfair". And you can see that children are always grizzling and crying because the world doesn't treat them kindly - and that's what is at the root of it: a lack of empathy and compassion for the child's point of view. The grown-ups are content in their knowledge of the way the world works, and the child has broken a rule, and as far as the grown-up is concerned there is punishment for that because that's how rules are enforced. The problem is that the grown-up in that example is lacking patience and understanding of the child's point of view, and that is because the grown-up is offended or threatened by the child's error, or in some other way the pent-up anger inside of them has found an opportunity to let vent on the child, and the screams of anguish bring relief to that desire, or thirst, for justice.
It is the way of the grown ups that corrupts and teaches the children to give way to the evil sinful ways,
Probably a good example is this one where I went to pull out of the driveway the other day in my car, and it was a pretty busy road, and this guy in the car coming along the road stopped so that I could go across in front of him. Well he did that straight away, I hadn't even come to a rolling stop yet, and there was only one other car behind him, and while he was coming to a stop for me, I happened to be looking for traffic coming in the other way. So when I looked back in his direction, I saw that he had slowed down and was stopping for me, and the car behind him was being forced to stop too, and I wasn't expecting that. Maybe if I'd been waiting for a handful of cars to go past first, yeah... but this guy obviously already knew that it is a busy road (probably has been stuck on that driveway before), and he thought it would be courteous to give way to me. But he was breaking the road code to do that, and he was inconveniencing the driver behind him who had a greater right to his courtesy than I did, and so I was surprised.. I shook my head and motioned to him to go on ahead, and as he went past I waved to him to thank him, but I could see that he was fuming at me for having made him stop for no reason - but can you see that what made him do that is that he would have thought that being in my position he'd have been thankful for that courtesy - and what is behind that is a sense of impatience and faithlessness (which is a thing that only the saved ones can really understand). But if I had been a more of a soft person, and at times I have had to learn this, then I would have not wanted to offend him for having made a way for me, and so I would have gone out in front of him. But the mistake in doing that, is that the person behind him would have been rightfully inconvenienced and would have taken that spirit of injustice forward into the world. So I decided it is better to do justice by upholding the natural right of the one car behind him where I was morally obligated to give way according to the law. In that way, I had chosen to bear the brunt of his anger toward me, because I had caused him shame in declining his offer of privilege, and yet it gave to the one in the car behind him the sense that his moral rights are being respected of goodwill - which in turn inspires him to carry that example (spirit) forth in the world. As for children when they are put in situations where their moral sense is tested that way, they normally will concede to the grown-up, and if they don't, then as long as the environment permits it, the grown-up will proceed to force their corrupt ways upon the child. So I stood up against the corrupt ways of the sinner in that case, but usually a child will be forced to concede to them.
There's lots of similar such things as that. For instance when I was feeding the birds at the beach and a child came up and we were talking and I shared some bread with her so she could feed the birds too, and she was just being friendly as kids do, and when I had finished feeding the birds I was about to leave and I went to talk to the parents and share the gospel with them and the mother actually apologised that the girl had been bothering me! .. well I couldn't properly express how wrong it was to do that, because it is good in fact that people can be friendly and get along and enjoy feeding the birds together - and yet to the mother's point of view she thought it would be appropriate to apologise for her child having been friendly to me! That's what I mean about the grown-ups imposing their corrupted and sinful ways upon the children. No doubt you would know all about how much grown-ups feel that they owe an apology to the world for the "inconvenience" that their child is to it (Matthew 19:13). Children naturally do live in the paradise that God has made because God judges them with favour for their innocence, and yet the world can't wait until they come of age so that they can start pulling them into the same accursed ways that puts them at odds with God's character, and in fact the sooner they can do that, the sooner they get rid of the indignation of the innocent little brat who asks questions they don't like to hear and who cries over the spilled milk.
and because children are small and obedient, they admire grown ups and are easily influenced, they comply and take on the image of their fallen teachers.
I think that's pretty self-explanatory - and if it's not, then it should become clearer when you see the way the children go on about how big and clever their Daddy is. Of course children never actually want to hurt their parents, and so they will even take a beating and believe that it is the parent's way of loving them, in order to be at peace with the parents - because that's what love does. It bears all things, believes all things, and it always trusts.
Children are not little angels. They do require guidance.
As I have mentioned above, the angels in them (whether being holy or of the Satan) come down from the ones who are over them to guide them, as you say (Matthew 12:33). That's why they are innocent of the wrongs happening as a result of poor influence until such time as the desires give birth to sin (James 1:14).