I can see the value of letting people pay with time if they are less inclined to pay with money, but I wish we could let them pay by actually doing something us

I can see the value of letting people pay with time if they are less inclined to pay with money, but I wish we could let them pay by actually doing something useful with that time, rather than by having them waste it (and I don't think entertainment is a total waste of time). I don't know of a good way to actually make that happen, and I'm not suggesting we should ban sales or anything like that, just that the current system wastes people's time and it would be better if it didn't.