Good point about the non-polarized connectors already in use. I imagine the IEE would say that they are used on specific items of equipment, whereas the wall receptacle is a general-purpose outlet which may be used for almost any appliance.
On the possibility of fused Schuko outlets, they couod be designed to take a 15A fuse to BS1361. They're the standard cartridge fuses used in distibution panels in the U.K.
