The Imperial system was used because people often needed to divide by 2, 3, 4, etc easily. It made sense to use a 12-based system.
These days, the level of education is better and we have calculators to divide awkward numbers. We can therefore switch to a more logical system for showing magnitude.
So the Imperial system is now obsolete. Just like the abacus: a thousand years ago, it was the best there was. Nowadays, we have something better.
We have the metric system now, people! It's better! The only reason we keep the Imperial system running in the background is for the minority of Luddites. In America, it would appear that they're in the majority.