Consider how many people are clingy and/or just have questionable judgement about boundaries with their friends, family, and acquaintances in general, usually with a healthy dose of neuroticism thrown in for good measure.

Consider that lots of these people have kids, and when they do, they tend to have a very friend-like relationship with them. Like, they aren't just magically better at this stuff when it's their kid.

These situations are a source of a great deal of this behavior, and the "I can't contact my kid-friend!" anxiety.