Schools went metric in 1971 – that’s over 50 years ago! I threw out the scales measuring ounces and pounds and the jugs with pints and fluid ounces and changed all my recipes to grams and millilitres. Now fifty years ago the UK is still selling milk in pints and beer in half and full pints. Our recipe books are written in metric and imperial according to the Guild of Food Writers whose authors are publishing for 2021.
You can read about my struggle to teach in metric on this link
Students would bring in treasured recipe books with the old measures and tell me that the cake wouldn’t work unless it was measured in ounces! Please can someone decide that we should go completely metric and measure in cm and drive in km!