"plastic shutters that cover the live and neutral that only open when the earth pin is inserted"
I think modern Schuko sockets also have shutters, which will only open if both pins are inserted. They are not operated by the rim earth contact as the flat Europlugs for double-insulated equipment don't have an earth contact.
Unfortunately, the UK design choice means that plugs for double-insulated equipment are just as bulky (and unpleasant to step on in the dark) as plugs for earthed equipment.
Biting the hand that feeds IT
