Got those London too. I believe at some point there used to be seven “American Candy Land” shops on the same one mile on Oxford Street. I think they replaced the shops selling cheap tourist trinkets and souvenirs that used to be all over the place.

Min you, not only is rent on Oxford Street horrifically expensive, but they all sprouted over Covid while foot traffic was at a low as, contrary to tourist trinkets, they could claim to be providing an ‘essential’ service as they’re technically selling food.

Also they tend to change ownership every year so they don’t have to file tax statements to HMRC.