One kid was 12 and the other was 16 they weren't alive 40 years ago and since when did swimming certificates need to be stored and archived for decades? Or easily accessible to "global law enforcement"????
The other poster seemed to think that the ability to swim couldn't be proved either way... well that isn't true.
This is rubbish and I don't know why you insist on posting it. IF swimming certificates exist for the kids, then this proves they can swim, however an absence of swimming certificates in no way proves they can't