GLLGH,
Pounds per litre is less horrifying ...
Some non-metric units are still in use in Germany, too.
We love our wheel sizes in Zoll = inches. Bicycles as well as car wheels. It´s simpy much easier to buy a 26 inch bicycle tyre instead of a 669 mm. Or 28 inch vs. 722 mm.
The pressure inside the loved tyres is measured in bar, which is almost as non-metric as psi.
Garden hoses and the respective fittings are 1 1/4 inch or 1 1/2 inch.
Diamonds are still weighed in non-metric carat.
And last but not least it sounds much better if our pride and joy has 200 horsepowers compared to a meager 149 kilowatts.
By the way: outside it is cold, only 283 K.
Have a good day
sorry for getting off-topic,
Andy