Is the feed algorithm the only problem that is harming children? Not the concept of a social network in general, the entire point of whose is to publicise lives

Is the feed algorithm the only problem that is harming children? Not the concept of a social network in general, the entire point of whose is to publicise lives and keep its users stuck onto their screens for as much time as possible? The entire fault of social networks is that it is hampering children's development by keeping them online. Trying to improve those services by making the algorithms better will worsen the situation. You want to make children lose the appeal of social media, not increase it!