Kind of off topic, but I've just gotta add that the safety shutters over the positive and negative terminals that only open when the ground pin (which is longer than the others on the plug) is inserted up top is brilliant, it basically makes short circuiting impossible. Electrical outlet design is one of the few things I'll concede the UK does better than the rest of the world.
I'd like to think Australia has a nice middle ground design to their sockets/plugs without the foot destroying bulk. Still get the shutter variants for bathrooms too.
Well, the design of the plug also implies the design of the socket. I was born in the eighties, and I've never seen an electrical socket without a switch, except for the appliance socket used for the cooker, which is behind where you install the appliance - the switch is higher up, above the countertop where it is accessible.
Basic extension trailing sockets don't, most of the time unless you buy a snazzy one. But it's by no means a recent development.
Plug and socket obviously go together but I just mean that you could have the switches for any plug, it's not tied to the plug but just rather what socket plate (or what's the term) design is adopted. Schuko could have those switches, I think Yanks have them in newer plug plates and so on. It's just that the UK has adopted (in a standard or just commonly for some other reason) the switches.
the safety shutters over the positive and negative terminals that only open when the ground pin (which is longer than the others on the plug) is inserted up top is brilliant
The US is catching up in that regard, at least, with tamper-resistant (TR) outlets being mandated by the NEC since 2008.