When I was in elementary school, President Reagan told us we should all convert to the metric system. So I was taught the metric system growing up. We always used metric measurements in science classes. When I think units of measure, except in the sewing room and cooking and body weight, I think in metric. Temperature I can go back and forth on. Since I majored in materials science and engineering in college, I used SI units all the time. (And 1600K, 16ooF and 1600C are very different temperatures. Just ask a ceramic engineer.) My kids do not do only metric in school. They go back and forth, although science is mostly metric. In fact, the first project my son did this year was to convert the standard chocolate chip cookie recipe from metric to American units. (Are they American units? I don't even know what they are called.)
So I am curious about what units everyone else uses. Do you think in metric? Can you convert in your head? What units were you taught in school? Is your local pool measured in yards or meters? I think the only thing that every really switched to the metric system was the plastic Coke bottle.