As for tolerance the funny thing is that while younger I would confront head on anyone that I’d think was bullshitting me. Nowadays I just ignore them. I’ve learned to not give a fuck.
The only thing I find harder as I grow up is to fall in love. It’s not that it doesn’t happen, it just doesn’t happen with the frequency and the easiness it did twenty years ago. But then again that might be a good thing, not to fall in love with every gorgeous woman that crosses your path.