That's not just the City of London.  The politicians over there seem to wear that outfit, too.  It's weird-looking (plain suit, plain shirt, plain tie?  really?).

I'm not terribly familiar with the whole Birkenstock thing.  Being from Florida, everybody always wore flip-flops.  It's not that flip-flops have some great cultural significance.  Sandals are supposed to be simple shoes you slip on and go on your way.  It's not that Birks have teh ghey that would keep me away from them.  It's that the designs are goofy-looking and they cost more than I've ever spent on an entire business outfit (suit, shirt, socks, and tie), whereas flip-flops are simple and can be had for ten or twenty bucks -- depending on what they're made of -- at any clothing store in the country.

Be nice to America. Or we'll bring democracy to your country.