[wazoox]

Yes exactly. Jobs that are labelled "low wage" are often incredibly subtle and complex. And people doing them actually can get better at them with time, and more efficient, too. I remember the story of a lady whose job was to dispose cakes in boxes, and make assortments (boxes of 4, 6, 8 cakes, with 10 or 12 different type of cakes to choose from: cherry tarts, lemon pies, chocolate éclairs etc). No robot is able to do this, and it's already probably quite less complex than cleaning up a street taken at random.