It’s the same in Canada, which converted to metric many decades ago. Metric is the standard, but old imperial units are still used in some cases, so that consumers are typically fluent in both. Speed limits and road distances are in fact entirely metric. The one big exception is that oven temperatures are always expressed in Fahrenheit, whereas weather is always Celsius. Recipe quantities can be either, but are often American units along with the Fahrenheit oven temperatures and meat doneness temperatures because so many recipes originate in the US.
Probably no one is more fluent in translating between pounds and ounces and kilograms and grams than deli clerks, where it’s very common to ask for a quarter or half a pound of whatever but the scales measure in grams. Sales of meat products are often advertised as a price per pound, though I don’t know if this is an appeal to familiarity and tradition or because a per-pound price is so much lower than a per-kilogram price. The actual product labeling, however, is always metric.
Which leads to some oddball quantities. Traditionally, for instance, cans and bottles of soft drinks had been standardized at 12 ounces. Now, the same quantity is labeled as “355 ml”. No one questioned that 12 ounces was a reasonable amount for the average human or dog, but now one is tempted to ask, “Why exactly 355 ml? Why not 300 ml? Why not 400?”.