I was guessing that. As I am sure you know, a shallow pool does not make a safe pool. Non-swimmers and children can drown just as easily and often the shallow pool is not watched as closely as a deep one.
Imo, all children should be proficient in the water (adults too, but it can be hard to teach old dogs new tricks) for safety reasons in water situations beyond your pool.
We have a agp with a deep end and it more popular with the my kids and their friends then the other pools they have access to that do not have one. My experience is a deep pool will keep teenagers attention longer. :blah: