So Cute!
The British people have a well-deserved reputation for being orderly, and there is a widespread belief that they stand in line for everything. A Briton, even if he is by himself, will still form an orderly queue of one. It is something to be commended that such a quality has been instilled in someone from a young age.
It would appear, based on how things are going, that this child is picking up such a characteristic, and he is doing quite well with it. In a very short amount of time, he will not only mature into a refined gentleman, but he will also become as well-behaved as is humanly possible.