We were at a baby shower yesterday, and the people had a pool.
The 9 kids from the parents at the shower, all aged between 3 and 10, started swimming and not one parent was watching them. My 20 month old wanted to go "bath" too, so I stood by her in the shallow end while she played and I had to keep an eye on the rest too.
How can you have a pool with 4 children and not have a fence around and watch the kids when they are swimming?
I hate parents who seem to feel their kids are an inconvenience. If your lifestyle doesn't allow kids, why have them?