I'd rather suggest to train children in swimming as soon as possible. Even if swimming pools would be banned, there are private pools, there are lakes and rivers and creeks and canals and oceans and shores, there are ships that sink and idiots that push you down a bridge. The drowning rates are especially high in countries, where people are not able to swim. I know this from the Sudan: people do not learn to swim in the desert (and not in the cities, because there are no water parks). Everytime a boat capsizes in the Nile (and this happens unfortunately too often) all of the passengers drown, just feet away from the shore, because they are unable to swim. A couple of years ago the entire national soccer team of Sudan died that way.

Being able to swim is an absolutely necessary survival skill and kids should learn it before they start to read and write!