Everyone should retire in a house they own, no matter how small. With a backyard. Gardening, woodworking, space to construct things, as well as just the ability to sit outside in the sun with a cup of coffee and cigarette to start the day. These aren't just hobbiest undertakings - they're vital to the physical and mental well-being of our elderly population. Space is key. Space allows you to move around. Makes you move. Space provides an area to do something other than waste away in front of the tv.
I should also get outside more.