Primary Causes to have to move into Assisted Living

I saw a recent video on Google with the following statistics from the Smart Silvers Alliance http://www.smartsilvers.com/ regarding the primary causes of individuals having to move into assisted living communities:

1. 33% occurred because seniors were not taking medication correctly
2. 30% occurred because of falls - in fact, the average is one fall per year for individuals over 65 years of age
3. 30% unable to complete all activities of daily living (separate research I've read suggests that normally the loss of a single activity is enough to push one over the edge - often this is as simple as toileting).
4. 30% occurred because of caregiver burnout

The numbers don't add up to 100%, I know, so it's usually a combination of factors and like life it's complicated. I was shocked by item number 4 - this isn't a reason someone should lose independence - and it's costly: it's about $5500 per month on average for an assisted living center. So, I'm trying to do something about these causes . . . we're starting a company locally to provide lower cost support services and use relatively simple technology and support services packaged simply to see if people will buy into a little bit of prevention.