> It's extremely rare to live on 25k for your entire life.

Not where I'm from or from what I've seen.

And my point is that you can't save that amount of money on that sort of salary.

I do. See above comments. I spend $18k per year in a HCOL area. Plenty of room to save $5k in there and still have buffer for expenses that come up.

You could probably fire up a YouTube channel of your experience and strategies and tradeoffs and garner a reasonable following maybe possibly growing to a sizable subscribership and possibly making some side cash. I'd watch some videos detailing these sorts of things.