i would say
Weed can be a gateway to harder drugs, I agree with some of your points like people should be allowed to have a 'J' in their own house. I think certain people ruin it for others dont know about the area you live in but round my way the local spar stinks of weed every night from the local chavs, should people have to put up with that? Before you get defensive i smoke the odd spliff but I do it in the comfort of my own home.
i would say drink is the bigest gateway to other drugs, it makes you stupid when on it and its easy to make silly choices when pissed, drink is the big