Kazan, just FYI, today's THC content in regular weed is about 100x bigger than what used to be smoked in the sixties. A joint a week (and no, they didn't get their smokes every day) wouldn't do anything to them.
Hippies weren't that bad of a movement - anti-capitalistic (definitely good, as I'm personally sick and tired of monopoly over everything and anything, our lives included), anti-nuclear (also good, if anyone mentions a power blackout I'll just kindly remind them of Chernobyl), much more social than people today, and, in fact, they actually cared whether this planet's going bust or not.