Schilke I agree it's tough but yes. That's what I think anyway.
Pony, scurry was pointing out, though not very clearly, that more abuse happens in the home.
Calm down, and don't talk it so personally. Nobody knows you, just calm down and don't get upset.
I think your concern is natural though tbh you do sound a little highly strung, unless that's just because of the horrible comments some have made. Just take a breath.
If I were in your shoes I would go to the teacher and explain that you need to insist on being in the changing room to settle your mind about things, because they aren't going to change their policy. Sad to say, but sometimes a man simply liking and being good with children can look "creepy" if you are not used to it. Do you think his behaviour can be interpreted like this?
I think it's really strange that the school would rather see your daughter out of swimming lessons than allow you to be a helper. A rota would be so much better than the same people every week.
I would also advise you to make sure your daughter learns to swim, and fast. She is already five and needs to be able to swim very soon.