Hello, Elizabeth!
Welcome to the Disney Parks Moms Panel. I'm so glad that you stopped by with a question for us!
It sounds like you are planning a very fun and exciting
Walt Disney World Resort vacation, and I'm sure you and your children are getting excited. It's the perfect way for a mother to make some special memories with her children, so I hope y'all enjoy every minute of it!
I have some great news for you, because there are plenty of attractions at
Magic Kingdom Park where you can all three sit together. There are only a few that you won't all be able to sit together, and those are The Barnstormer, Seven Dwarfs Mine Train, Space Mountain and probably Tomorrowland Speedway since both children will want to drive. Depending on the ages of your children though, they might be able to ride together on the attractions that only seat two people. The Cast Members can let you know the age that the older child has to be in order to supervise the younger child on these attractions, and I would ask before you even get in line just to make sure.
So Elizabeth, I think you'll all be able to stay together for most everything you want to do on your upcoming trip. I hope this helps and please let us know if you think of anything else. Have a magical day!
~Carrie