We went to Disney a couple weeks after our 7-yr-old DD was diagnosed. She was, and still is, on a sliding scale. That follows a pretty simple set of rules. If they are counting carbs then their doctor probably gave them info on finding amounts. Having Type 1 does not mean DD can't eat things, it means we have to keep track of what she eats so we can administer insulin accordingly. (Which, if you're diabetic, you know.

But I have people ask me if she's "allowed" to eat things, or who wonder why she's diabetic since she's always eaten so healthy...)
We actually had more issue with high blood sugar at Disney. I've noticed that sometimes even when she's very active it will be high, then immediately after activity drop like a rock. If it were high and we'd give her insulin we'd have to give her food, too. DD is only supposed to take insulin before meals. However, while on vacation our meal schedule was off, so we had to follow a few rules - food after insulin and insulin only so many hours apart, etc. (Those are things their doctor will have gone over with them.)
Disney's counter service all have good choices for kids. Getting a rounded meal is good - protein to stretch out the sugar, carbs for energy, and fruits or veggies. (Precisely what kids are supposed to have, right?

) Even the cookie for dessert is fine for our DD - her doctor tells us just to give an extra dose of insulin beforehand, or let it go and the sliding scale takes care of it at the next meal. (We have the most awesome endocrinologist!) With kids, the doctors tend to let the sugar run higher. For example, our goal is to keep her below 200. That's not the same as for an adult.
I know it's very stressful for them right now, but hopefully they can keep calm and have a good time. I've tried to be very calm about it with our daughter - this is who she is and it's just part of our family routine now. She takes care of her own blood sugar, can dose and administer her own insulin, and loves talking about it with people. She's proud to be a diabetic!
Remind the parents not to be hard on themselves.

No matter how well you take care of your diabetic child, the numbers will go up and down. Keep their supplies with them, and the process of learning how to best care for them will get easier with time.
