Yes. I consider it a skill. If you keep evaluating what you need vs what you don’t, you can save that money for the important things.
I wonder about this too.
I can recall a story in the papers some years ago where an elderly man passed away, and they found, literally millions of dollars stuffed in his mattress.. He was just a regular guy. A trucker as I recall, who simply didn't spend anything.
A lifetime of saving, even on a pretty medium wage can see this happen.
It does seem rather tragic to work your whole life and never enjoy the fruits of that labor.