As a family of 4, here is our strategy. A parent is always to go first as a single rider. This way a parent will always get off first and be there when the kids get off. Then the 2nd parent always goes last, they make sure everyone gets on. The only time we change this is if they need 2 single riders for one car, then we let the kids go together and when they get off they won't have to get off and be alone. Hope this helps!