>>11071117>>11071112Imperial units are better sized for the scale of objects and processes you would normally want to describe. This is especially clear with measurements of temperature. The main reason you would care about a temperature in day to day life is to know what clothes would be most comfortable to wear (pants vs shorts, so I need a jacket etc). With the farenheit scale, just knowing that the temperature is, say, in the 70s is enough to tell you what would make sense to wear. The value of a degree is such that it is convenient for normal usage. Not so with celsius, where each degree of temperature is large enough that you need 2 sig figs worth of information for it to be useful. The difference is less notable in other areas, though feet are definitely a more convenient unit for a lot of things compared to meters, which are kind of too big.
There's a very good reason for having 12 inches to a foot, which is that 12 is easily divisible my several factors (2,3,4, and 6) whereas 10 only has 2 and 5. This makes division into whole number parts much more convenient. 12 is legitimately a better number base than 10 assuming you don't need to use your fingers to count. I wish we used base 12 instead of base 10, I know some societies used to.
