I think most people just have some type of misalignment unless they use braces. I have one slightly crooked in my lower teeth which I think is just genetics because my grandpa has the exact same tooth crooked at the exact same angle.
I think it's about oral posture. My girlfriend has perfect teeth alignment and never had braces as her family is too poor, she also has a perfectly shaped ja and very forward grown maxilla and mandible. So I think the two are interconnected