Swimming lesson in this weather

[dontwantbenefitbutforcedtonoworksuitable]

DD is year 4 & they have swimming lessons at sch on Thursdays. It is -5 degrees here today. Should these kids be swimming today? Or am I just an over protective mother?

They might well have turned down the temperature of the pool. I'm not sure why people find this so unbelievable.
I live abroad and regularly visit 3 swimming pools. All three of them have turned down the temperature of the pool by a couple of degrees to save on costs since the price of electricity etc. went through the roof here.
They aren't going to be turning the temperature up and down because of the amount of energy needed to get the temperature back up but they could have turned it down permanently.

However, irrespective of the temperature of the pool, there is no reason why swimming should be cancelled because it's cold outside.