Um, yes? Very much so. Infant swimming self-rescue courses are life-saving if you live in an area with a lot of swimming pools, especially if you have one of your own.

E.g., https://www.infantswim.com/

At best, ISR covers the short term.

I see these kids come on deck and enter the water and its hard to not notice their development is behind to those of their peers that went to a swim club that was proper learn to swim to thrive in the water as opposed to just that survive mentality. They are the most watched in case something happens.

So yea, don't just throw em in.