[Tervuren]

The imperial system is designed with units that are practical to use. The metric system is easy for mathematical quantification.

I am the only guy at the company I work for that uses the metric system, it can be a little interesting when a unit # gets missed or a piece of software doesn't convert.

You start getting pretty decent at converting MM to inches or feet when you do it every time you need to communicate with anyone else at your workplace.