His incall fee is a modest $22O. Is a $22 deposit really worth the reputational risk to him? Because he looks sorta cute and his overall fee is so low, it may be worth the risk. Think of the cost of your overall experience, not the short term $22.
The only time I have given a deposit was when I requested certain items such as the escort wearing a specific brand of underwear, which he didn't have. I have requested that a 'twink' escort wear Wolford pantyhose, which I prepaid. But I do that only with escorts that I have an established business relationship with, not with newbies.