Their time may not be worth much but their suffering is just as real as yours. Being forced to endure the company of people you did not choose in an artificial society with no inherent meaning or goals probably isn't healthy for many, but it's a hell for some and purgatory for others. I don't really have much to say about primary school but most of secondary school was a waiting room for real life. It would have been worse if I'd known what I was missing, I'm sure.