Controlling my information consumption is not a legitimate function of the state. If algorithmic feeds get a lot of use, it's because people like them. Is that so hard to comprehend? That your preferences are not universal? And that you shouldn't use the government to bludgeon people into accepting the kind of information feed you, personally, would prefer for them? What gives you the right to do so?
What you calling "addictive" is just revealed preferences of the populace.
Great, let's legalize recreational fentanyl too, since 'whatever people seem to like' is good for society.
In this case, unless you're a child, nobody's trying to control what content you consume. And if you are a parent and want to make sure your children can continue to consume the most addictive possible social media, by all means lie about their age. The law does nothing to stop you from doing so.
By contrast, having zero mechanism for the rest of the parents to control this, as is the current case, does impose your "do whatever feels good" values on the rest of the world.