I guess that to anyone who's grown up with a certain system, any other foreign ways seem strange at first. But, yes, Britain is rather the odd man out on some things -- Fused plugs, ring circuits, etc. (I was going to add driving on the left, but then more places than you might think do that, including, I believe, the U.S. Virgin Islands!)

John,
I'm on the Norfolk coast at the moment, but I've lived in various places around England, spent time working out in the States (Nebraska), and I'm still thinking about expatriating again to somewhere with cheaper housing and better weather!