I also don't understand how you afford this shit either, unless you grow or sell idk how people do it. That being said, I know a kid who was high ALL the time, for a whole school year last year. every time I saw him he was high, he said that eventually is just becomes routine and you don't even think about it anymore, what a way to ruin something great..............
He was also the typical stoner, missing class, slow talker, sleeping class
He was cool to talk to when he came to class but he gave off the typical stoner vibe, whenever I saw him i always thought to myself how I wouldn't want to be like that, maybe that's why parents and other authority don't like you to smoke, because they see things like that.

edit: He was also caught smoking at school once