Some people do some don't, it's very relative.
But let's say you are reaching your 70's and you can't do a lot of the stuff you used to do when you were younger. You will get forced to staying at home and let the younger generation do those things for you. You begin to be more sedentary, spending more time alone with no one to talk to and to repeat the same routine over and over again.
Elderly population often suffer from isolation. In the later stages of life where we can't really move like we used to it's important to stay active. In this case study me and my colleagues do a deep dive in the elderly population world.
From college assignments to my freelance work.