Over here in Canada, kids (and, adults) are taught metric, but go to the DIY stores, where everything is basically shipped from the USA, and almost everything is in inches/feet.
Earlier this week I went to "Home Depot", and quickly did a conversion for wire from a spool, and asked for "12 feet 14/4 stranded". The helper sheepishly told me that, now their measuring device does metric, so he'd have to convert my measurement to metric. They are progressing!
If only materiel (steel, brass, etc) was in metric, I'd be really happy. It's all inch, unless you get something special, like silver steel.
Another JohnS.