Baggy, you asked the question and then reveal you've already made your mind up? Hmm ...
At any rate, vegetarians will tell you of the social sacrifice you're going to make, that people like me will look down on you, make fun of your diet, ridicule you for your choice, etc. I've known a lot of vegetarians and I've never done any such thing nor have I seen them subjected to that kind of treatment. It seems many of them chose the lifestyle actually hoping they would be subjected to such treatment so they could feel like martyrs. They often hype the healthy way they live as superior to a standard diet, but wind up taking a much higher dose of multivitamins because of the lack of meat in their diet. They also have to take protein supplements, or eat a lot of legumes and risky being gassy.
The most-often voiced argument for vegetarianism is concern for the animal population. I grew up on a farm. I care about animals, too. We were very careful to treat them well. Even now that a majority of production livestock is being done on feed lots, they are still treated humanely. The videos one sees of downer cattle and close quarters for the animals are rare instances, not the rule among livestock producers. If that is truly the reason you are considering going to a vegetarian diet, don't waste your time. One person, one hundred persons, five million persons on a vegan or vegetarian diet are not going to improve something that doesn't need to be improved. If you want to go on a diet sans meat, do so for rational, personal reasons, not to "save the planet" because a vegetarian diet is not going to do that.