I'm asking this one for a relative - my "baby" is 9. Anyway... I have a relative who is hoping to travel to SW Florida next month to visit family. It would be her, her husband and their baby who will be 19 months old at the time of travel. She is young enough to be a lap baby, but they were thinking of getting her her own seat to make things easier. So, her question is this, if they purchase a ticket (and thus a seat) for her, is she then required to sit in the seat for take-off, landing, whenever seat-belt light is on etc... or is she allowed to be held since she could qualify as a lap baby? Also, would you recommend she bring the car seat on the plane? If they didn't purchase a ticket, are there other rules she should be aware of? Obviously this is not an infant but a mobile child which I know can make a world of difference. She flies on business trips frequently, but has never flown with a little one so she's unsure of the best practices and while I can give her some advice, policies have changed since mine were toddlers. Thanks for any advice - I'll be sure to pass it along.