Basically, I hired a 19-yo to become a math teacher. He's very inexperienced, but came with great recommendations from a responsible, dear friend, is attending one of the best engineering schools in the world, and he did well in the interview. I knew he'd give me some trouble because every new teacher goes through that phase.  What I didn't expect is so much criticism directed towards his body and his clothing. He's a sleeveless shirt kind of guy, which is not weird since we encourage our teachers and students to dress comfortably. Also, it's a tropical beach city and I didn't think anyone cared. I've been talking to him in order to improve his teaching skills and standing his ground, but I'd rather quit than tell adults how they should dress themselves. This is an ongoing issue, it might take a few more weeks to cool down.