Going back on words sometime in the future might be why there's that never say never saying? XD
If you do all right in life then maybe you just get to a stage where you realise you have everything you want already and just kick back. Seems to be the case with my parents anyway.
I knew for sure I knew everything way back when. Now I know I don't know much of anything, and it's much easier that way XD
It is easier. Just think, never have to find something to do because there is always something to learn.