That seems like cute libertarian nonsense. The key word is choice. People have less free will than you think. Every time a teen goes to insta/facebook/tiktok etc they are an individual up against a huge corporation of thousands of people and ML whose job it is to hijack their dopamine circuit. Usage of these apps decreases attention span which effectively means other activities become boring so the users experience a withdrawal symptom like a drug addict.

And it doesn't just affect them. I think most of us would rather live in a society where 50% of the population isn't brain-rotted.