How come no one has commented on the fact that most of these videos include someone falling off an inflatable ring in the "deep end" of the pool while having vi

How come no one has commented on the fact that most of these videos include someone falling off an inflatable ring in the "deep end" of the pool while having virtually no swimming skills. It seems like a no-brainer to me that it's a bad idea to float out on a ring if you can't swim. Is that really common?