Or it highlights that you ARENT like all the other kids who can eat what they want in this magical place and not worry about numbers.
Or the plane may crash on the way over. Or one of the rides may develop a fault. Or the ice-cream could have anthrax in it. Or world war 3 could break out while you are over there.
You can choose to put the most positive or the most negative slant on anything.
Put yourself in your child's position: if you get diagnosed with T1, do you want your mother to be able to give you all her great advice and experience in helping deal with it while having fun in Disneyland, or do you want your mother to stop you from doing fun stuff, and always pointing out the worst in everything - even things which are not even things and may never happen?