Why do we still use feet inches and gallons when the scientific community and the majority of the world does not?

How many ounces will make 200 mL? What is the name of the only active volcano in antarctic? The divisions within a principal energy level are called? How does the lymphocyte cells adapted to it function? In which direction are the Great Lakes from the US? What are monerans called that do not have an organized nucleus? What conclusion did Ernest Rutherford have after he finished his experiment? What o red blood cells do? Why living things have to be cared by plan? A wire fix at the upper end stretches by applying a force F what is the work done in stretching the wire? what covers most organs and cavities with in body? What color construction paper burns fastest? Is a clock a biotic factor? What are some north east landforms? Can you sharpen a stone or rock? Is an aluminum can a compound element heterogeneous or homogeneous mixture? Which of the copper alloys are the most weldable? Does the antronex interact with your tyroid condition? What organism on which the organism in item to 19 lives? Which jovian planet has rings made up of rocky matter and ice?