Originally Posted by masiman
You don't go to the pub and ask for "a litre of your finest draught!!", you ask for a pint.
True, but by law all foodstuff in shops is now sold in metric weight/measure and people use metric for personal height/weight. Temperatures changed to Celsius years ago but it was a long time before the weather forecast went solely metric. For years F and C were quoted until people got used to it.