"Sorry, you can look at my outfit, but you can't touch it. Some of the outfit is fragile, that means it can break easily, we have to take care of fragile things." is all that would need to be said, wouldn't even need to "put hands on a child".
And even if they did move the kid back after that admonishment... I think no one would complain about that action. They'd complain that children are in proximity to fetish actors, but they wouldn't complain about the conduct contained within the situation, just the situation as the whole.
"Sorry, you can look at my outfit, but you can't touch it. Some of the outfit is fragile, that means it can break easily, we have to take care of fragile things." is all that would need to be said, wouldn't even need to "put hands on a child".
And even if they did move the kid back after that admonishment... I think no one would complain about that action. They'd complain that children are in proximity to fetish actors, but they wouldn't complain about the conduct contained within the situation, just the situation as the whole.