Prohibition is effective, it's just that it doesn't work for easy to manufacture compounds such as alcohol or marijuana. Every known human culture has independently discovered alcohol, and marijuana is a weed that is ready to smoke in its natural form.
As far as social media goes, my country has reached a point where TikTok and Facebook are preinstalled on every phone. If a parent buys their kid a phone and removes them, they will reinstall themselves after an automatic update. When you take into consideration the "streamlined" registration process, one can argue this is a means to target prepubescent children.
...I guess an 8 year old could download a VPN and steal their parents identification, but I feel like some form of prohibition would help.
This is my opinion. I'm sorry if you don't like it. Out of the hundred simple comments that were insulting Republicans, my comment was the only one that didn't agree.