Yea there’s too many variations, but I don’t dislike the concept of different designs for different currents. Here in Denmark there is zero difference between a 10A, 13A or 16A 230V outlet, you’ll only know when the fuse blows. Though most outlets in the house is 13A. We also use the CEE standard, but that is mainly for industrial use and sucks to connect and disconnect.
The convenient 73 variants insure that you cannot use the wrong plug into the wrong outlet, thus increasing user safety through simple design choices.
Yea there’s too many variations, but I don’t dislike the concept of different designs for different currents. Here in Denmark there is zero difference between a 10A, 13A or 16A 230V outlet, you’ll only know when the fuse blows. Though most outlets in the house is 13A. We also use the CEE standard, but that is mainly for industrial use and sucks to connect and disconnect.