Yep, white lies. The underlying rationale is that kids do throw up in pools and you don't want to get into a public argument with a kid about how they're not going to throw up, can they go in pretty please.
It's like the thing about getting arrested for turning on the lights inside a moving car. No, you won't get arrested, but the reflection on the windshield can be annoying, and getting distracted by kids going ham on flicking the lights on and off is obviously dangerous.
It's like the thing about getting arrested for turning on the lights inside a moving car. No, you won't get arrested, but the reflection on the windshield can be annoying, and getting distracted by kids going ham on flicking the lights on and off is obviously dangerous.
See also, school "permanent records".