I 100% agree. I know pessimism stops me from taking risks (and likely rewards), so I'd never subject others to that pessimism and try to be outwardly supportive

I 100% agree. I know pessimism stops me from taking risks (and likely rewards), so I'd never subject others to that pessimism and try to be outwardly supportive/optimistic towards their goals. That being said, I find that many workplaces are overly optimistic and need some pessimism/realism to ground the processes.