OK not kid-hater but...how many times have you arrived early (esp for SWA) flt gotten a low number and then watched as someone with a child between baby (cute) and almost teenager go to the head of the line to "pre-board" early. I can recall once a family of 6 pre-boarding early due to 1 child about 6-7 years old...I would call that a bit of taking advantage of the system. At least some airlines pre-board F/B and FF members before the old "baby/child" group.