Small modern families don’t have a ton of people around and the relationships between those people tend to settle into equilibrium. It’s not really adequate for

Small modern families don’t have a ton of people around and the relationships between those people tend to settle into equilibrium. It’s not really adequate for practicing the adaptive social skills we usually (used to?) expect from adults. And day care can provide more of that, but is naturally supplanted for 25-30 hours per week once kids start attending school. Socialization is absolutely a function of schools. You can expect big societal repercussions if it were substantially removed.