I can use both measures. I just prefer Imperial, it has a more natural feel to it, metric just feels artificial. I'd use metric more if we used decimetres, they're a useful size to have.
Metric isn't British though is it, it's French. That being said, I think you'll find Imperial is also based upon continental systems as well - ounces avoirdupois for example.
Metric is
the system of measurement, it counts in decades, doesn't need any arcane conversions between one unit or another* and as anything manufactured/built in the last 50 years is based on metric dimensions, is the more accurate system to use. The origin of the system is totally irrelevant to me, - the pound is a Roman term for a 'weight', and in the UK is a weight derived from wool trading with France in the 12/13th century. The concept of the foot in serious measurement terms was introduced primarily by the Romans, and subject to the range of human body dimensional variations gradually homed in to a notional foot size. Both the pound and foot were formally defined with a metric standard in 1959 which was legally establishedf in 1963, - that date probably being early enough to predate most members here arithmetic education.
* Obviously there are plenty of inherited measures in the metric system (known as 'permitted non-SI units') where the decade relationaships don't exist, but most of these have little or no relevance to day-to-day public usage except time - (hrs, mins secs) and angles - (degrees). The main measurement units of linear dimension, (incl. area, volume), and weight, (incl. force, power, energy) have relationships that are first learnt before school age (i.e. numbers from 1-10).