It's easy enough to change over -- just 1. Mandate that everyone in the country install universal (or dual-interface) plugs. Fairly low-cost, and pretty safe.

It's easy enough to change over -- just 1. Mandate that everyone in the country install universal (or dual-interface) plugs. Fairly low-cost, and pretty safe. 2. After 50 years, when all plug sockets will probably have been replaced, pick a plug standard and use that. Like user pdpi, I've fallen in love with the UK sockets since moving here, with the Au/NZ sockets coming in a distant second place. I've never had any trouble with either sort falling out of the socket, something I can't say about the American or European standards.