I would push back even further and say that the nuclear family (as well as the Prussian school system) is unnatural and even harmful to child development. Raising a child in a village with lots of extended family and friends of all ages promotes much more varied socialization, with a mixture of peers to relate to and older role models to learn from.

Both daycares and schools suffer from the problem of socializing kids into seeing adults as authority figures to be placated and manipulated, rather than leaders to learn from and aspire towards. This also feeds into a cycle of seemingly-unending adolescence, to the point where we now have 30+year olds talking about “adulting” as something they still aim to achieve.