Hard labor barely exists as a job, it's all done with machines. Go to a nursing home, the workers are sub-minimum wage high-school students, illegal immigrants,

Hard labor barely exists as a job, it's all done with machines. Go to a nursing home, the workers are sub-minimum wage high-school students, illegal immigrants, and... old people. Infrastructure maintenance is all done with machines. Also, not all old people are fragile grandmas who break their hips in a slight breeze, plenty are perfectly capable of doing any kind of work.