After the invention and introduction of ELCB(Earth Leakage circuit Breaker) in the LT power supply distribution, this kind of regulation, they might have passed.
I have also seen in United states, in all health care units and residences, there is no isolating switch combined in the wall outlets.
But in my personnel opinion, there must be a isolating switch which also to be mechanically inter locked with plug top. I mean that the power plug can not be removed with out switching off the power supply. This kind of arrangements have to be done atleast, in Hospital grade power plugs.
