At the point where everyone in his social circle is doing this, he will feel the loneliness of being the only one excluded from it. Perhaps he'll experience it peering in through someone else's phone.
And better yet, once the child is free of their parent's influence, they'll probably just get sucked in because they never developed the mental mechanisms to handle the tools properly (because their parent was too emotionally blinded and thus incapable of teaching risk management).
Just like that parent probably did when _they_ grew up and left home, for the same reasons. Cycles of emotional abuse are hard to break.
If a parent could give their kid an exact copy of their good/bad mapping for the world, the result wouldn't be a copy of a well-adjusted parent. The result would be a child who, at best, is able to function one step from their own reality without too much chaos. But I think it's more likely they would lose their footing somewhere around college and go off the rails, an increasingly necessary process it seems. Hopefully they have enough self-awareness left at that point to figure out how to exist in their world, finally in their own way.
Maybe 10 years from now using social networks isn't going to be ubiquitous anymore. Maybe people will wise up and see this isn't doing any good to anyone, except advertisers wanting to manipulate you into buying ever-increasing loads of crap. I can only hope.