Yep. We had Metric in school decades ago and for the most part there was no need to know it. The last 30 years or so it became almost impossible to buy anything, except maybe gasoline at the pump, that did not have the metric amount listed on the bottle or box. More and more food recipes will have the ingredient amounts in metric. Some bread, cake and pastry baking groups use nothing but metric and often the flour and dry ingredients are weighed out in grams.
Then there is measuring by grain but I do not target or competitively shoot anymore.
Back to Metric and Imperial. If I can consistently get 5 grams of Citric Acid by measuring 1 and 1/4 teaspoons of the Citric Acid then I will use that same set of measuring spoons since they are easier to get out than going to the closet to get the box and taking out the scale.
But still a lot of US citizens who cannot get used to measuring in Metric.