Re: Why not simply eliminate the plug?
USAnians do occasionally avail themselves of a round plug in bayonet style, as in "stick it in and twist it" (but don't pull it out) that has its own style of dedicated socket quite incompatible with vacuum cleaners, air compressors (a favourite of US builders) and electric kettles. But these are most often associated with server rooms that even the sysadmins find it hard to get into. Casual office layouts have to make do with the standard plug.