For who? lbs, oz and inches and miles oh lets not forget gallons which have worked for centuries as a way of trading and travelling.
-Official system of measurement for all nations except the U.S., Liberia & Myanmar.
-Unit/decimal use makes things far simpler.
-Every scientist on this planet uses it for research, development, etc. It is THE standard.
-Imperial is easier for people to visualize in the U.S. - non-U.S. folks don't share the sentiment.
-Imperial was great for trade, however, trade was local back then. Trade has evolved from a local scale to an international scale. Read previous comment.