Its very hard, especially when you were not conditioned to deal with it at a young age.
It works both ways, though.
Refusing to resign, in a clearly lost position, can also be a sign of immaturity.
These players refuse to admit defeat because they can't handle it, emotionally. It's too much of a blow to their pride. So they play on, stubbornly, angrily, because they don't know how to accept a loss.
These are often the same players who will whine / curse / threaten if they get checkmated.
The practice of "never giving up" isn't always a sign of mental toughness. Sometimes, it's the opposite.
Alright, I down graded from rock and roll, being cool to chess.
Fair enough.
Why not both?
David Bowie and Catherine Deneuve.
That’s a great pic!