Yea.. my mom is like that sorta.. she Will walk when asked, but she used to walk everyday and she would walk 'normal'.. not the old , feeble person shuffle. :P I guess, at some point, u just get old and give things up.. walking included.
Your dad does sound a bit like me when I get real depressed. I don't want to do anything.. walking included. My remedy is to watch movies and vids. seeing and remembering how moving around makes life all good.. that is one key to lifting my mood and then walking is suddenly easy again! :)
Unfortunately he has not developed interest in anything else other than sitting quite and as said an idle mind is evil.
yea. :( some ppl just get older and older and act as if life is all but over.. ,my mom used to play cards everyday.. now, not at all,. she used to watch several shows.. cooking, travel, various gameshows , now.. only 1 show.. all day... its sad.