The 13A uk plug and socket is simply too big. That’s. It’s major failing it requires big back boxes , hard to make slimline extensions sockets and the insertion force is too great
It’s an example of the perils of a single design criteria , ie safety. When several criteria should have been used . I know older people who physically cannot unplug the plug.
These days with multiple RCBO protection , there’s no need for a single obscession on plug safety , equally is polarisation an issue, in reality
That’s. Not to say the plug is going to disappear but it’s has its drawbacks that’s clear