and no reason to start now! People who've grown up with metric find imperial really arcane, but everyone here whatever age recognises the pint as the unit for milk and beer! And although fuel has been sold in litres since the 70s, I don't think I know anyone who actually buys fuel in those units; we do it by money instead - £40 worth for example. But I've adapted to Celsius; 0 for freezing and 100 for boiling water is as easy as pie