[otherme123]

The socket in CEE also protect the plug from being hit laterally and damaging either the socket or the plug. In Spain, before the adoption of CEE 7/3 we had europlugs without plug pocket, and I remember half the sockets of the house wiggling on the casing due to lateral hits, and plugs coming out of the socket easily. With CEE 7/3 you have to pull, they feel really sturdy, specially compared with NEMA. I don't have much experience with UK sockets, but I bet they are not as secured (not electrically but as in this-plug-isnt-going-anywhere) as the CEE 7/3.

Not a fan of the protection through a sleeve, as it encourages meddling with the socket with a screwer to use unearthed plugs.

That said, I would like Shukos with fuses, and Shuko plugs unable to plug in unearthed sockets.

[Symbiote]

The UK plug is probably not as tightly secured, but the pins are rectangular and almost twice the width of the round CEE pins. I think the result is it's pretty much equivalent.

Unearthed UK plugs simply don't exist.

[otherme123]

There are Youtube "tutorials" about how to plug CEE appliances in the UK, for example: https://www.youtube.com/shorts/AMGKtNtSaHI . In UE we have sockets with unearthed barriers using closed holes when the plug isn't earthed, but they also sell plastic pieces as a workaround for the barriers. I have seen people breaking or sliding the barriers with a screwdriver to get access. At this point is better to just install spring covers like the triphasic sockets, because the only real protection is against dust.