What’s the Cost of Not Remodeling a Senior’s Bathroom?

What’s been bothering me lately is that I’m meeting all these wonderful seniors, and I can see that they would be safer and happier after remodeling their bathroom for safety, but they resist spending the money.  It’s hard—they’ve learned to be frugal and they have to juggle spending on the basic necessities of food and prescriptions with an investment in remodeling. 

So that got me to thinking what were the costs of not remodeling the bathroom?  There may not be any immediate costs, but as we get older, we get frailer.  Then I can only see three options.