Both of them were 18. I couldn't tell you about his parents, but just from his actions alone, I'm guessing they weren't into Sikhi like that. I would see her with the baby at the train station and occasionally still do. The parents also probably want nothing to do with the child. That baby is living in a terrible environment, I actually know her brother. He's out here selling drugs, and doing all the typical street activities.
The children should never be made to suffer. They're blameless. Yes, in some situations they're used as pawns between the parents and even the state, but if there's none of that going and the father just can't be bothered to maintain a relationship with the kid, then that's just not on. A child needs a father.