Should I let my son dress as spider man?parenting

My kids are having a dress up week this week and one of the days is dress up for what job you want in the future. One of my sons wants to be Spider-Man and will not pick anything else. I personally dont see anything wrong with it but dont want him to be judged for it by other kids or teachers say anything. He’s in pre k, only 5, and has autism. Should I just say screw it and let him be Spider-Man?? TIA