This is not a fast-delivery problem though, this is a governmental/cultural problem. If we could have fast delivery with rested, happy workers, then I see no p

This is not a fast-delivery problem though, this is a governmental/cultural problem. If we could have fast delivery with rested, happy workers, then I see no problem with the fast delivery itself. The question is, why are people doing these jobs if they are exhausted and miserable? Is the pay good? Are the (flexible?) working hours better than elsewhere? Why is it preferable to other jobs?