I'm on the verge of turning 65 myself, and will retire just about 3 months from today. My adult kids are trying desperately to get me in a new car but I'm resisting. I think I'm even gonna quit bicycling, since I do most of my transportations on my feets anyway and happen to live in a perfect area for walking as a primary transportation.
To me not depending on a car at retirement age is ideal. We've called cars "tombs" for years, but as we age don't they become even more so? I say stay in your walking kicks or stay on your bicycle and keep the cobwebs from starting up. Staying active, especially as we describe the term, adds a lot of joy to aging!
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Trikeman