Ask any proud parent and they'll tell you their kid is their highest priority. That means when deciding where to go for vacation, toddlers and kiddies usually factor into the equation. Without having the finger dexterity to book tickets or cognitive development to plan itineraries or agendas, little munchkins across the world help set the pace and plan for family vacations or reunions with friends who have kids.
I recognized this when my nephew was born this year (my first nephew ever!) and our whole extended family decided to gear Thanksgiving around where he (and his parents) live. We just may decide to adjust schedules around baby for Christmas as well. Why not? As the first grandchild in our family, we're all enamored and want to spend as much free time as possible before he's grown up and it's too late. OK. So it isn't that urgent. But you get the point.
And when kids are in school with more pronounced likes, dislikes, and interests, parents can consider what types of vacations to take the kids on: nature explorations, camping trips, road trips to the national parks, beach vacations at luxury hotels, sailing adventures, overseas travel, theme parks, etc.
When organizing that next group trip with the kids, consider how much is being determined by the kids themselves. Their influence is significant.