I've always, since I first left school put a portion of my earnings away for a rainy day.
Often without a specific goal, just to have a cushion, to know that when the car or washing machine needs replacing I can pay cash and latterly with one eye on retirement.
I'm now early 50s and in a place where I could either retire soon or (more likely) reduce my hours, by spending some savings to live on until I draw my pensions.
I have enough savings to do this for several years, provided nothing big changes. Eg. A big increase in inflation or losing my job.
I don't "need" to save any more but I feel uncomfortable about putting myself in a place where I can't replace what I spend.
Presumably this isn't an unusual position, particularly for FIRE retirees. How do you get your head around it? It's always been a bit of a comfort blanket for me, to know I live well within my means and have enough savings to get myself out of most sticky spots.