Dad's mobility is pretty poor and he uses a walker indoors due to trouble with his knees. I am worried about his footwear. He spends most of his time indoors shuffling around in really badly fitting footwear. He can't bend down so pushes his feet into old slippers and has sort of folded over the back of them so that his feet slide in and out of them. Occasionally he trips and stumbles in them. Is there are a particular type of footwear that would be better for him? I think he'd need something that is very easy for him to get his feet into but could then secure round his feet so it doesn't form a tripping hazard. Any ideas?