>how much situations change as you grow up

And yet this looks very different from what 40+ years back looked like for adults so it's not just about growing up, there was other massive changes in our society.

For example the number of kids we had in the past dramatically affected 'forced' socialization.

The post war suburbanization that forced us to spend huge amounts of time on the road.

Things like TV that took entertainment from a group activity to a single person event.

All these things added up.