The guy went to his first drop-off birthday party yesterday. (I didn’t know it was a drop-off party. I just noticed everyone dropping off, so I asked the guy if he wanted me to leave and come back.)
It went OK! He had fun. Though I guess a smaller kid punched him? But that would have happened even if I was there the whole time.
I still do not know what to do about a smaller kid punching you. You shouldn’t wreck ‘em, and I do not know what the party maintaining grown-ups would do about someone else’s small kid punching someone.