Superman is more than his superstrength. He's still Clark Kent, the shy retiring guy who just wants to maintain his low profile throughout life. The more he goes out as Superman, the likelier his cover will be blown and the life he's built for himself will be over. Still, he goes out to help people nonetheless because he can. If that's not brave, tell me what is. This is from my point of view as an introvert so I could be biased.
I'm no expert, but I'm pretty sure he's been put in situations where he had to be brave to persevere.
There are kinds of fear other than the fear of death that people have to overcome.
https://m.imdb.com/title/tt0112368/?ref_=m_tttr_qt
There are kinds of fear other than the fear of death that people have to overcome.