They're not as easy to confidently and safely get as weed or coke. The first time you do acid you get a little tab that could be anything.
This is probably also the reason (I guess) shrooms are more popular than acid - you can grow them and you can see that they are literal mushrooms, rather than some mysterious chemical substance made by your friend's boyfriend's cousin's roommate.
This is probably also the reason (I guess) shrooms are more popular than acid - you can grow them and you can see that they are literal mushrooms, rather than some mysterious chemical substance made by your friend's boyfriend's cousin's roommate.