Interesting perspective, but consider time allotment for a day. You get 24 hours generally broken down into: ~8h sleeping, ~8h working/studying, ~8h "free time"

Interesting perspective, but consider time allotment for a day. You get 24 hours generally broken down into: ~8h sleeping, ~8h working/studying, ~8h "free time". Can't you argue that they're being productive by virtue of their day job or the courses they've taken?