Hi Ashley, and welcome to planDisney!
I remember the
Walt Disney World Resort vacations we took when my two were that age. If you ask me, it was a beautiful time to take them and experience firsthand when they see the different sights and sounds of the “magic.” Even if they do not remember it, I remember, and it is a memory that sticks with me to this day.
To answer your question, I do not (personally) think it is necessary for your little one to have a
MagicBand, because it is used for things like getting into the theme parks or even opening the door to your room. Having said that, if you would like her to have one, I see nothing wrong with it, mainly because it can be customized on the back. If you are worried about the fit, do not worry, all you will need to do is remove the outer band, and depending on the size of her wrist, it should fit. Also, having it on makes for some amazing photo opportunities. I hope this helps.
Please let us know if you have additional questions; we will be here if you need us.
Have a magical time!
Raquel