Young Kelly Jones looked longingly at the playground. It wasn’t far away, but it might as well be a million miles away. Instead, she was stuck in the boring queue with Mum and Dad. It was her first-time visiting London, visiting England even, and they seemed to have been standing in queues all day.

There was a queue for the underground train. When they finally got on, it was hot and horribly claustrophobic in the summer heat. Then they’d had to queue for the Natural History...