Booked a trip for 2 adults, 3 kids and then within months, became a single-parent family. There is an option to take a grandparent with us and still have 2 adults. However, if I cut one adult off reservations, I can save close to $1000, allowing us to fly versus drive. My only concern is really ride configurations. Even my older two won't be brave enough for the bigger coasters/rides like Splash Mountain or Space Mountain, etc., so height restrictions/youngest not being able to go on rides they want to isn't a problem. I have read that kids ages 7 and older can go on a ride without a parent. My middle child is 6 years old. I don't plan to send him and his older sister (8 y/o) on any rides alone, but some rides, they may need to sit in their own car (Haunted Mansion, Little Mermaid, etc) if we can't fit 4 in a car. Other rides may seat 4 riders, but in two rows (Seven Dwarf Mine Train). Are these rides going to be a problem for us? Will they even question if my son is 7 - he's pretty average size, and he'll be 6.5 by then.