It's because metric sucks at anything on a human scale and most people deal with things on a human scale. Imperial was developed over hundreds of years to be extremely narrow and scope in a specific two things at a human scale.

It's a big reason why imperial makes far more sense. If you actually need to talk about anything on a human scale, everything no matter how nonsensical makes sense the moment, it's explained because it's all extremely intuitive.

While metric is basically a tiny fraction of a technically Superior system that basically makes no f****** sense in 99% of cases for a day-to-day life.

Try metric is the measurement of science, engineering and other fields of study because they actually do with things outside of day-to-day human scope

As the saying goes, use the right tool for the right job and only a dumb f*** uses the wrong tool for the wrong job