I think you have it backwards.
Everybody is curious. Everybody asks questions ... especially
when they're between, say, 5 and 17 years old.
Some people don't get any answers, and they're OK with that.
Some people get answers from their teachers or their friends,
they learn to repeat the the words they heard and use those
for answers, and they never worry too much about whether the
answer is true, or where else it can take them.
Some people grow up with the burning desire to know, to understand,
to ask questions that were never asked before, and to search and find
answers that were never found before.
Those are the people who become the scientists.