In practice, as the previous poster pointed out, Imperial numbers are rational, not real. You wouldn’t normally experience ‘3.7’ feet.

Don’t get me wrong, I’m certainly not a proponent of the Imperial system (for instance, calculating prices for groceries is painful). I am just pointing out that the metric system doesn’t take into account many Human use cases (Base-10 isn’t great for Humans). It was a system forced upon people by an ‘ivory tower’, and consistent with US philosophy, it makes sense that they rejected it.