We've posted articles related to the safety of homes for seniors. However, the safety of the physical home is only part of what to consider when monitoring an elderly person aging in place.
The emotional health of aging seniors is critical. They are more likely to spiral downward if they do not have a happy lifestyle. If they are able to get out for social activities, then their overall well-being improves dramatically. There are various senior transportation services that can be utilized if driving is not an option. Make a regular check-in date with them to find out if they are getting out, meeting people and generally enjoying life. This could be a call that you set up ahead of time, 1-4 times per week. It also gives them something to look forward to. There are also services that provide phone pals for seniors.
Unfortunately, some seniors are home bound. If this is the case, then setting up a service with a home visit provider is absolutely crucial. Everyone needs human contact and these visits can improve their outlook on life. In addition, having someone check up on them regularly to make sure they are healthy, eating properly and in a safe environment can eliminate the stress of worrying about them.