Had an interesting discussion with another writer. The topic has been changed to grossly over simplify a very complex subject which I will refer to as ‘teens wearing green hats.’
The protagonist and best friend wear green hats. Other writer points out that in her (actually considerable) experience with teens, they don’t wear green hats.
Aside from the possibility that a writer may know a couple of teens who wear green hats, there is the possibility a reader might find it more romantic or interesting to read about a teen who wears a green hat, even if in real life it’s like writing about a unicorn on American Idol.
In fact, in YA novels most of the female protagonists wear green hats.
That said, one does have to make it believable that the protagonist would wear a green hat.*
*Might still have to work on that one a little.