One additional thing that just came to mind is how schooling affects the parent-child bond, especially when both parents work, as it's the often the case nowadays. Children mostly experience their parents in stressful situations. In my opinion, this has unthinkable far reaching consequences.

When you talk to relatively older people, like 50+, you realise that they had much more freedoms. Already in early age, they could roam the streets unsupervised, socialise, play, explore with other kids. This would be unthinkable today, especially in a big cities. A tragedy!