Three simple rules in life
I've always considered that Steve never telling Tony about his parents was pretty human. It's sort of given. I think most people have those moments in their lives where they just can't bring themselves tell someone something they should know but the words just don't come out. It's a relatable thing. What I don't get is that for once Steve does this one thing wrong and he's endlessly demonized for it while other characters get to fuck up again and again and again.