Why do so many UK electrical sockets have an on/off switch next to them?

https://lemmy.world/post/24712938

Why do so many UK electrical sockets have an on/off switch next to them? - Lemmy.World

They’re like that in this apartment we’re renting and I keep seeing them elsewhere. I don’t get it.

So we can turn the power on and off.

Why else would you have a switch next to a power socket?

The real question is why did the UK decide that on the outlet itself is the best place for that switch, as opposed to e.g. in the US where outlets are sometimes wired to a switch located next to the door to the room?
So you don’t get confused which outlet the switch turns off.