4. It's a family trip and she won't be a part of it.
oh - take her!
she may not remember, but she will have a fabulous time! and kids are so adaptable, it is not difficult to travel with little ones. you are a family and i say something big like a first family trip to WDW should include the whole family.
we took our rugrats last year (dd 3, ds 13 mos) and everyone said we were nuts for taking them. we knew dd would love it, but ds suprised us - he had just as much, if not more, fun! some of our best family memories were made together at wdw....


I hadn't thought of it that way but I could definitely see that causing some possible problems later!
Don't leave her , you will regret it. She will be fine!