This is something that I've really never thought about til now. Why do esl schools want to see a picture of you. I have a million ideas in my head, make sure you're not disabled, make sure you are white... etc. But what is the real reason... if even 1 exists. What made me really think of this is recently a future employer said to me after I sent a picture "You look great, just waiting for your girlfriend's photo now" It was a very weird message and made me feel dirty.... Dirtier than an esl contract.

Cheers