Why do different countries have different electric outlet plugs?

Why do different countries have different electric outlet plugs? which slot is hot on an outlet The hot slot is the smaller slot to both quickly identify it and make it more difficult to slide in the wrong prong or other conductive material which slot game is easy to win On the contrary, 20 amp outlets have a T-shaped slot for the neutral prong and a horizontal slot for the hot prong, along with the grounding

which slot game is easy to win The wide prong on the plug links the threaded base of light bulbs to the neutral terminal in the receptacle The hot side of

which slot machines pay the best A socket is fixed in place, often on the internal walls of buildings, and is connected to an AC electrical circuit  Each outlet in a duplex receptacle has a long slot , a shorter slot , and a half