This happened with my wife’s anesthesiologist during labor - the resident did his first epidural on her. I didn’t love it, but everyone has to learn at some point - and calling it out at the time could have caused more frustration, concern, and delay in the procedure (missing the window for getting one due to contractions). I also didn’t ask how many he had done, but I overheard it prior to him starting. I think asking him about his experience could have caused him to get nervous.

It turned out fine.