I think the point is that part of having a functioning society (civic life, engagement, tolerance of others) is having people mix together. School is one of the prime places where that happens.
If you allow a lot of people to pull away from that "forced" engagement with others then you start to stress a lot of societal bonds.
If you allow a lot of people to pull away from that "forced" engagement with others then you start to stress a lot of societal bonds.