You often wont see the things you dont want to see or that your presumptions prevent.
I have no doubt you have seen crying freaking out children whom a parent tried to comfort by guying a doll or encouraging them to take their doll for comfort. That is a parent teaching their kid to obsessively become dependent on their dolls.
Cellphones.. i dont know, when haveyou seen a parent tell a small child who is freaking out to play with their cell phone for comfort? That sounds weird and not something I can say sounds like the norm.