Gloria, you are very welcome to join us - caring isn't just about physically being there (I live 80 miles from mine, work ft, so I'm not there), its about fretting about them, dealing with things for them, and the frustration of trying to get them to accept the help they need.
Unfortunatly, a lot of the time it does take a crisis to change things, but you can set the groundwork by lots of chat about 'gosh, you get a much better deal by paying by direct debit, I could set that up for you dad' 'oh, my friend was telling me how their dad had scrapped the car and got a mobility scooter, you won't believe how much they saved, even taking the odd taxi!' and so on. Then one day it might be his own idea!
NMS - no exhaustion hitting - they are still keeping me on my toes and both are still slowly declining, but no one has been in hospital for months. In fact I need to plan to go and see them as I'd got so used to fire fighting, I hadn't had to plan a visit for years