What age did you start letting your D child go to the pool w/friends without a parent? This would be neighborhood subdivision pools (no lifeguard, no monitors - access by card). DD is 13 and has friends that invite her to their pools without a parent going. One mom checks on them occasionally at the window (lives behind subdivision pool) and other moms send the girls alone. Then there are all the D considerations - no locker for pump, no lifeguard in case of a terrible low, etc. Thanks.