I had wanted to upgrade my 8 year old son to adult dining. I have had disney dining previously but found that child choices were limited. He enjoys lots of different tastes including spicier options. He also has a nut allergy and the lunch-time options are limited with one of the staples being PB & Jelly sandwiches. Having looked through the forums it seemed all I needed to do was pay the difference between a child and adult theme park ticket. I have been in touch with my travel agent and been told that because we booked when they were doing free disney dining the cost to upgrade now would be to pay for the full adult dining plus the ticket price change. Needless to say I will not be paying that - if it comes to it I will pay for an additional main course or apprtiser oop.