On one hand you're saying that more than a second under is unacceptably dangerous
No I am not. If you cannot form an intelligent argument without attempting to put words in my mouth, then you don't have a good debating point.
I am saying it only takes less than a second to gasp underwater in shock from falling and start drowning. A second can be the difference between your child simply coughing the water out or blacking out. That is an irrefutable fact, whether you or anyone else on this thread likes that fact isn't the point. I have already explained this several times on this thread.
I may have assumed you already had a correct understanding of drowning, and if that is the case I apologize for confusing you.
You do not die the second you inhale water. That's not how drowning works. As I have explained up thread drowning is suffocation by water. You inhale water, which causes your lungs to stop working, which cuts off oxygen, which causes brain death, which causes death. Complete death takes a couple minutes of no breathing, brain damage takes less than two...for an adult.
You don't drown from only inhaling a little bit of water like kids coming up coughing. It takes 2-4 fl oz. That is the size of an average breath (or gasp).
But arguing over a single second is a non-argument. Parents that are within a second to reach in and grab their children are already supervising them. So that argument is pointless. Arguing it takes a few to drown doesn't do you much good if you're more than a few seconds away, completely unaware they slipped underwater in the first place.
As I explained earlier. I put on seat belts when we drive. Not every small accident or fender bender makes them life saving, but the times an accident is severe, they are. It's just such a simple thing.
I don't understand why a parent wouldn't want to take basic safety precautions with their child. I really don't.
You can't have it both ways... Either swimming pools are an unnecessary risk to be avoided, or you accept that the risk of dry drowning risk that may come with being under for more than a second is acceptable.
Or I could just supervise them to make sure they don't hit their heads or slip under. What an amazing idea that would be. :)