With regards to bonding, I wonder about the effect of modern parenting conveniences/distractions as well. Some of my cousin's children are placed in front of a screen whenever people are over, I recall visiting them and the kid was basically entranced by Paw Patrol on the TV. Similar with video games or tablets at a young age. Additionally, there are sort of automatic toys, the toys that have batteries and speakers and say cutesy phrases to your child to entertain them when they are young. Toys which don't require creative input, and also don't facilitate social bonds. The child learns to associate with the toy and not with people, in the phase of their life when they are maximally receptive to learning language and behavioural norms by interacting with real live people. People around me seem to see a child mesmerized by a singing mechanical light apparatus as cute or fun - I see it as the child adapting to a world of cruel inanimate machines and not adapting to people through normal play and interaction.