My dorf children, who rarely see their parents as their parents are always busy, would grow up feral too then. They'd get a lot of their friends interests though I guess.
Well there are situations where they would meet, families share bedrooms (and beds) so presumably during the usually synchronous sleeping cycle of dwarves where they all have to retreat to eat/drink/sleep eventually. Read the smaller dwarves a story or something so they grow up to become productive/unproductive members of society or let the kids hang out in the tavern and speak & be influenced by the people passing through.
Plenty of bad influences tucked in there.
I watched our three dorf children as often as I could for a few months. They played in their parents rooms only when their parents weren't in there (in this fort, the kids don't have their own rooms, as an experiment). They slept in their parents beds only when their parents weren't there. When their parents were home, one went to the tomb of a fallen war hero, and played Make Believe, with a gold toy forge (our fort makes toys as trade goods, and sometimes it feels like we have more gold than any other one substance). The other two went to the wellroom, and sat about, went and got food individually, and eventually one of them fell asleep on an unowned bed outside an unoccupied tomb, while the other went to the fowlhouse. Hopefully he was collecting eggs, they need collecting. He fell asleep on a pile of wood near the carpenters workshop a while later, having drunk what was probably rather a lot of cider. By this time the other children were playing makebelieve again, one in the magmaforge area, and one in the staircase. Alone. As far as I'm aware, not one of them has even spoken to a parent in over a year.
No, I don't think that they're getting any family time. And one of the parents even dreams of raising a family, yet she hasn't seen her kid in years, and hasn't raised a baby since her kid was born four years ago.