Ask cabin crew when you board if the flight is full. If it isn't you could ask to move seats so that you have more room. An empty seat gives such a lot more space for a child to play. Most cabin crew are very sympathetic about this. Spend time at the airport walking/running around so that by the time you board she is very tired and ready for a nap.
don't have a problem with under 16's having free bus travel,BUT
How many pair of twins have you met?
Daughter not allowed to know new baby’s name until she visits him




