Britain tried to go metric 40 years ago. We have only been partially successful. You buy your petrol in liters but drive in miles. Weather forecasters use celsius for temperature but give wind speed in miles per hour. I weigh 13 stone. The Irish painlessly ditched this silliness a few years ago. Now the UK Metric Association wants us to do the same. Apparently it just makes us look weird.
Hogwash. Mushy peas and brown sauce already make us look weird. And besides, the lack of a standard just shows the ability of the British to understand nuance. The world should be envious.