I'm handing my kid a joint as soon as he's able to keep the thing up to his mouth by himself!

lol jk, but seriously, I hope to be the first to introduce my son to it. Probably around 18 or so, when I started, after high school.

I'd say within the next 20 years, no later than that. I don't know about full legalization, but I suspect within the next 10 years we'll see it decriminilized worldwide. I think it all starts with the States, since we have such a big influence, like it or not, around the world.