[popman]

Personally, I think it should be possible to take a harm-reduction test and get examined by a doctor and get a license to possess certain currently illegal substances. (Taken to it's most extreme, that would also include alcohol and nicotine) I also don't think they should be government issued either, but rather by certain regulated third parties, in order to ensure privacy.

I don't know of many places aside from china where taking drugs is illegal, normally it's just possession and sale that is. Normally, the sweet-spot for things like this is decriminalizing possession, but keeping sale illegal. Again, I think this is less than ideal, as it makes it harder to limit sale to children.

For the sake of reference, do you have a strategy to keep your kids away from other drugs? I don't have children, but I expect my plan to involve describing what each of the substances do, and why they might want to avoid them. (or wait until they're older)