Mmmm... Nah... Sorry
Because his parents told him too is the worst reason ever for anyone to become a Superhero IMO.
And they've already kind of done it in the Donner films and Smallville, with Jor-el telling him it's his destiny to be the world's greatest hero and everything!
As I keep saying, I don't want him driven by personal tragedy either.
But I have no problem with him reflecting on the tragedies of the world, in war and famine, experienced first hand on assignment.
It's not about getting all broody and sad and hard done by because he's seen all this pain. It's about how much he appreciates human life through seeing different cultures, and how lucky he realises he is, to have been raised in Kansas, with the priviledges he had like running water, food, peace etc etc. It's about him recognising how hard life is when you don't have super powers as an advantage (even tho he felt like an outsider and a bit sorry for himself growin up), and that anyone who has that advantage should be using it selflessly. To help other people who aren't as lucky.
That to me sounds like a bloody good reason to become a superhero.
And yeah, you can blend in the 'discovery' of the suit in the ship, to explain how he decides WHAT to wear.
I'd just like a little bit more of an interesting story as to WHY he wants to wear it.