I think it mostly has to do with how society, (at least American society), has grown this thought that people become adults on their 18th birthday, so important decisions should wait for that date. I mean you will have people that throw a sh*t fit if a 17 year old is smoking a cig, as if a year is really going to make much of a difference!

Drugs, alcohol, and sex are never good for someone who is too immature to deal with those things, and because we have been formed to assume people become adults instantaniously on their 18th birthday I think that's why most people say "wait till you're 18 for that".

The only word of caution I'd have is to make sure you don't get side tracked on your goals in life. I'm not blaming mary j for my bad choices in life, but I'm just saying it can make you lazy and if you notice you are caring less and less about your dreams and goals, that is a red flag. At 16 your primary concern should be your future and school, so don't let MJ, or anything else get in the way of that!
Nailhead Reviewed by Nailhead on . Why do people say "Wait until you're 18" I don't understand why people say "Wait until you're 18 to smoke weed, so your brain develops." That doesn't make any sense, your brain isn't fully developed until you're 25. I'm 16, I toke, and I still get A's in school. Rating: 5