Mattresses especially fall into the 'dangerous' category from what I recall; the sewing machines would be extremely easy to run a hand or finger into if you mak

Mattresses especially fall into the 'dangerous' category from what I recall; the sewing machines would be extremely easy to run a hand or finger into if you make a mistake. Lightbulbs are probably similar to Pato11's original story; robots which can handle the glass and construct the filament supports require extremely delicate and precise control, so it's cheaper to use people. For now.