I'm 52. Until about 4 months ago, the last time I was on a bike was when I was about 14. That's what, 38 years ago?....

Last year I got tired of being oout of shape, and started fitness walking.
Then, I got back into biking 4 months ago and started with baby rides of a mile. Now I can do 40 mile rides! I love it so much I ride almost every day, hope to keep riding until the snow and ice comes. I suppose I'll fall back on my walking through the blizzards until Spring.
Happily, my husband (DH "Dear Husband", as we say here on the forum) has gotten back into biking as well, and we ride all over the place together now. It's love.
There's just something liberating about rolling down the Open Road with the sun and wind in your face....