That goes for everything though. Generosity, politeness, ambition, care...that's why "balance" is a concept
Not false, but it's different with confidence. Nothing's wrong with being too generous, too polite, too ambitious or too careful. Because those concept on their own are supposedly positive already. Confidence is nuanced because having too much is bad.
Correct. It's a tricky balance.
I would disagree, but only due to semantics. Being overly confident leads to people being cocky and full of themselves, which is bad. But that doesn't always happen. Jut having tons of confidence isn't always bad