Having grown up in Canada, I always thought the mishmash of metric and imperial was a mess....now I live in the UK and they have an even stupider mishmash. Like wtf is stone, and why tf is it only used to measure a person's weight?
We buy in metric and measure in imperial.
1 kg of flour please, then I go home and measure it in cups and tablespoons.
For cooking, etc we should have names for 5, 10, and 25 ML, 125mL etc. Worst thing they did was try to say is that 250mL is a cup, when it is actually a great way to screw up a recipe. Fortunately Alexa does my conversions for me while my hands are wet or occupied.
But either way, I still need to know Imperial so that I can talk to Americans. Some folks seem to think being clueless about metric is some badge of honour.