An EV charger can handle a much higher load, over a longer period of time, than a socket. It also includes extra safety features, which makes the charging safer.
In 2022, the Norwegian Electrotechnical Committee (NEK) prohibited* to install a socket to be used for car charging. The reason is simple: fire safety. The Norwegian national ban on installing a standard socket as a charging point only applies to new installations. It’s still legal to charge your EV using a dedicated socket that has been installed before 01.06.2022, given that it’s in accordance with NEK 400, the Norwegian Electrotechnical Committee's installation standard.