Hi Anna!
Thanks for your question and for visiting the Disney Parks Moms Panel!
How awesome that you will be bringing your little Prince to
Walt Disney World for his first visit!! I can remember VIVIDLY the looks of wide-eyed wonder on my girls' faces on their first trips...TOTALLY memorable!
I think that planning to make
Magic Kingdom your initial stop is a solid plan. Even though there are many awesome things to do in each of the
theme parks for little guests, I just think the Magic Kingdom has that certain something that makes it worthy of being the first stop of the journey. As for visiting other parks on a multi-day ticket, you do NOT have to visit the theme parks on consecutive days, but please keep in mind that
park tickets do expire 14 days from the day of first use.
I hope this helps and I wish you and your little guy the most Magical trip ever!! Make memories!!
Chris