Earlier quoted context omitted.
So, by giving that example you show that you have not understood anything of the discussion so far. Let me spell it out: that's the defining moment of Tank Man's life, you have zero clue about what happened prior to that moment. And that's because really nobody seems to have a clue about who he really was, what his life was like up to that moment and so on. It's a singular act of bravery and one that I very much feel…
Let's be charitable and steelman your parent comment, and Tank Man too (quite literally). Character is important. As you say we don't know much about Tank Man. It was probably more than the defining moment of his life, it was the last day of it. Isn't it fair to assume that whatever led up to that moment was a life lived in good character? He may not have lived as an exemplar of "authenticity", and if it was only a m…
So let's not resort to theoretical absolutes. I don't know where 'here' is but every culture has similar idioms but at the same time every culture has something about being careful about meeting your heroes.