This post was just an exploration of how dishwashing was in the past and how it might be in the future, it wasn’t meant to sell you anything :)
By the way, wouldn’t be nicer if the couple or the parent with the children make a painting or play a song instead of washing the dishes?
About the doubts on the sustainability of domestic robots or new dishes I agree but I don’t see a big difference with the sustainability of actual dishwashers, maybe there are cleaner solutions.