Technically I think it's for parents to regulate their kids.
I'm actively avoiding Shorts, Reels, and whatever else with those mechanics precisely because they pull you in and snap an hour is gone with nothing of value to show for it. It's so totally different from regular long form videos.
We regulate addictive substances too, even for adults and without relying on parents. The amount of productivity and quality of life lost to these platforms must be staggering in aggregation.