Funny, but probably would not work all that well in reality, or not for long. They are presumably wearing cups and unfortunately the best ones are claimed to offer quite good protection to the area, good enough that even direct hits will not cause much pain. After the first couple of cases happen to a pretend woman who got a bad one and was hurt the rest will wise up.

Oh well. Women wear them too in combat sports, BTW, but the design is different and at least a "woman" with testicles who makes the mistake of using one of those should be vulnerable to a hit there so you might get one or two in the beginning.