I'm so glad those rules weren't about when ours were little, our eldest was 4 years old, identical twin boys at 2 when the second set of twins arrived, a boy and girl, we used to go swimming every Sunday when the youngest turned 1. We had to go go the next town which had a very shallow end, so they could all play and hubby and me could keep an eye on them all. We managed fine, don't think it would be possible now, pity as we all had a great time. Pity they won't come now though don't think its that cool to go swimming with your parents at 18, 21 and 23 lol. Enjoy them the time passes so quickly.