Lost, move up to get even?

[novel20]

I have read many posts about people losing money at lower stakes, and then trying to get it back at a stake much higher than usual. What kind of thinking is that? Some of the lucky ones got back even from a higher stake and immediately move back down, and others lost even more and went bankrupt.

When I just started playing, I used to have this kind of urge. Nowadays I would think if I am already losing money at a lower stake, why would I want to lose even more money for the same kind of mistakes at a higher stake? Bad beats could definitely cause a couple buy-ins, but the remaining 10+ more buy-ins are totally due to bad play. Moreover, there is no way you can play your A-game when you are playing way over your bankroll.

May be I just don't have the guts?