I'm living on disability, and started riding bicycles as physical therapy, so it doesn't require much money. I never had kids, and don't use alcohol or tobacco, and haven't driven a motorized vehicle since around 1983. And don't own a house.
I've always been a loner type, so prefer my own company most of the time. But everyone needs some human interaction, lol, and I get plenty, just not in the normal family setting. 😉