I love this story!
I was an avid walker and race walker for many years before slowed down by Multiple Sclerosis. My health has declined dramatically since age 50, I went on parliament disability in my mid fifties, and I will be 70 this year.
I'm pretty much housebound but no wheelchair. So I walk when I can but slowly.
I'm envious of your good fortune and wish you continued good health and many more happy years. & thanks for your response!