I'm not disagreeing with you Yonuh, but if a single woman wants to stay in her home as long as possible/age in place, she most likely will be unable to properly clean a home to her satisfaction when aging body is such that we don't as much energy anymore (just tiring) and not as mobile. ie. falling accidentally up and down stairs, etc.

And I'm a person still cycling at my age: I know I won't be able to bicycle forever. So that's why I choose to live in a city with transit, close to services so I can walk or take a short taxi ride. We really have to be so honest: how many people will be immediately near us to help us at our beck and call when we need them?
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