I was born in a pretty rough city of a pretty rough country and it was a popular past-time for my peers to get a hold of some non-prescription meds and overdose on them hard to catch a glimmer of a trip. I'm sure a lot of them damaged their mental & physical health doing that. If those exact drugs were illegal nothing would change, except the label of the drug. I think stopping people by law is pretty pointless and highly ineffective, so maybe alternatives are better.