They always have a buggy
The children of the royal family are Badgird. Since there is a lot of danger to them, there should always be people to care for them. All people know them, aware of where they live and where they are going, even paparazzi do not give them a comfortable moment, so it’s natural that they need a buggy guard. Even when they go out with their parents, they have guards who increase their number by increasing the number of children.