aja8888
Moderator Emeritus
Just based on my observations, I think the "bad legs" come first, albeit actually just weak legs that have trouble supporting and propelling the very overweight bodies they're attached to. Then the scooters come into the picture, and from there it is an inevitable downward spiral — less walking, more obesity, more need for scooters, less walking, etc. etc.
I watched a neighbor woman go down this road. The "etc, etc" was diabetes, than a mild stroke, then a more serious stroke, then leg removal at the knee, then nursing home. She was 65 years old when she passed. Sad..