A lot of schools function effectively as childcare for parents to go to work (or do their own thing). You can hear that in what some parents are saying now that schools are closed.

You can get more effective education from a couple of hours employing an educator to work 1-1 or in small groups; you can get more effective socializing from going to sports and hobby clubs which don't have to be segregated by age and where you can leave if it isn't working out - this teaches you how to value your time.