Do I need braces? (Photo)

Hi, i wanted to ask for your advice whether my teeth need braces or not since my dentist said i don't really need it and that i may have some issues if i get them done. I also can't decide whether the problem is the shape of my teeth or of my jaw. Also my wisdom teeth are near a nerve and i don't know if that would be a problem if i decided to get braces. Thank u.