I don't even have a passing interest in marijuana legislation. It's not one of my vices.
I do love me some stupidity, and we can find that in abundance in the drug war, especially anti-marijuana crusaders.
The short version is that no, marijuana isn't as bad for you as booze, and you can buy booze everywhere after you turn 21, but weed is mostly illegal in the USA. Why is that? The reasons are many and varied, but you can rest assured they are a load of baloney.