I too am terrified of being dependent on wheelchairs, walkers, etc as I get older. To the point that if I am at the store with the idea that I want something bad for me all it takes is one person who in a scooter or someone very heavy with a bunch of junk in their carts to put me back on track. As it is my knees hurt all the time, my back hurts at the end of the day and my left hip hurts a lot. I like your idea of supporting each other. It is a different scenario and struggle than the younger people have.
And your English is wonderful! I admire you for being that conversant in another language.
You know all those things you wanted to do: You should go do them.
SW 215 lbs
CW 180 lbs (whole foods/primal eating)
LW 172 lbs
GW 125ish lbs