I call the local Area Agency on Aging when we have elder folks who live alone, and can't walk, but the home isn't equipped for them to be unable to ambulate. My concern is egress method in a fire, etc. At least suggest they get a Link to Life, Life Line, et al.. eg. an "I've fallen and can't get up" alarm. Not just for falls, feels ill, can't call, push the button. I know your issue isn't the same, but they may be able to sign up for some sort of program where someone comes to check on them on weekdays. Like Meals on Wheels. They may not like that idea, but I did that, and one of our chief objectives was to check their well being and mental status. Out here in the sticks, where you may not have a next door neighbor for a couple miles, it's a worthy service to those who live alone. And it's not just for the elderly, it's for anyone disabled, ill, etc that qualifies.