We are travelling SYD LAX on UA in November with our then 3 year old and 1 year old. We are travelling on award Y class seats. Originally we were planning on having our 1 year old in our laps but I'm getting a bit nervous about that now especially since I'm having issues getting our infant added to our booking with UA. (See this thread: http://www.australianfrequentflyer....ng-infant-lap-ticket-checkin-36964.html)We're now trying to get an award seat for him but was wondering if we HAVE to take a car seat for him or can he just sit on our laps for take-off/landing etc and then have the extra room at other times? I'm guessing it might be easier to get him to sleep/sit in the car seat since he's used to it in the car but how do I know if the seat meets safety regulations? Any tips on whether it's worth taking the seat or not since I'm guessing we do have a choice?