> Plug covers are easily and rapidly removed by curious children, and are potentially a choking hazard.
Ultimately that comes down to the plug design. Schuko sockets (used in most of Europe) are typically indented into the outlet enclosure. This enables IKEA[1] (and others) to make covers that basically can't be removed without tools.
I do think sockets should be fundamentally redesigned from the ones we have here in the US. There are so many, better examples in use around the world. One small plus is that most of our outlets are only 110v, which is somewhat safer to deal with.
Ultimately that comes down to the plug design. Schuko sockets (used in most of Europe) are typically indented into the outlet enclosure. This enables IKEA[1] (and others) to make covers that basically can't be removed without tools.
[1]: https://www.ikea.com/se/sv/catalog/products/20098963/