Life changes...roll with it

Older people seem to live calmly and happy and without a care in the world. Why is that?

They have gained enough experiences in life to cope with whatever comes at them. (for the most part)

We can only deal with things if we have a coping system in place to process the situation. The more experiences you have in life the stronger the coping methods you will devise on the fly. Sometimes you will have to work hard to figure out solutions to your problems. (solutions - coping methods)

Wanting vs Doing

The mind is a funny thing. You may feel you want to do something yet for some reason you just don't do it. This is a common thing people overlook and claim the person just has no idea what they are saying.

There are feelings and there is logic. Wanting to do something generally comes from an emotional feeling wanting to be met. However the mind presents logic opposed to it. Or the situation may be in reverse. The action generally is caused from whichever is stronger at the moment.

This does not excuse behavior, it only explains it.