Anyone would think they didn't know what "acting" is.
This is as creepy as hell . . . and TBH as that young actress's parents, I would not have wanted my child touched by "Kitty" even on her shoulders, even as part of the role, even while being chaperoned by an entire production crew. It just sends the wrong message to my jaundiced eye.
I'm not saying "Kitty" or the person who plays "Kitty" is in any way untoward or in any way a danger in themselves - but the scene is normalising a boundary being crossed that shouldn't be.