I just wanted to know because I have always been confused by this. One of the roleplayers that I converse and play with was just saying that he had to go to school today and we were both discussing the fact that you shouldn't have to go when you hit eighteen because then you're considered an adult right? But then sometimes like when it comes to drinking and gambling you have to be twenty-one or older so I'm wondering what is the correct adult age and why can't they just stick to one or the other and not make it so confusing? (either way you shouldn't have to go to school at either age)