The Chinese are real long term planners and I can see a universal wage eg work a choice rather than a necessity, before that time comes. I also see a world ruled by industry coming to an end sooner than later. Consumer societies are not sustainable. Not only China, everywhere. Robot drones will do a lot of our essential tasks like farming and rubbish disposal in the future. Assuming we don't blow ourselves up first that is.
i never understood the one child policy except from an authoritarian ruler view eg break up family units. It destroyed too much of human social life. For a one child policy means we may remove the terms brother, sister, Uncle, Aunty and cousin from language as they would no longer exist.

Yeah. We may be worried over nothing. I think this might be why they're building modern automated cities. They won't have enough workers for service and transportation work.