<p>Two different types of walking being discussed here- the exercise and the get from one spot to another types (mobility).</p>
<p>Just a note on the walking thing. I have a good friend who has been disabled and in a wheelchair most of her life. She has two children, plays tennis and “walks” almost everywhere. She walks to the grocery store that I drive too and my house is closer than hers. So the getting out and getting exercise thing isn’t limited to those of us who can use our legs more than others.<br>
She gets waay more exercise than I do and I go to the gym regularly.</p>