Choices, not Abilities

"It is our choices, Harry, that show what we truly are far more than our abilities"

-Albus Dumbledore-

The Sorting Hat said that Harry could be great in Slytherin but Harry chose Gryffindor then he was in Gryffindor.
You have right to choose and often, people will judge you based on your choice more than your ability. Still, you are free to choose and they are free to judge.