Not sure if it ever was intentional but I am fully metric these days as almost all running events seem to be. Still not sure why when doing a 10k, ROs put out mile markers though. Maybe that's just one of my pet hates.

Cycling however seems to still be stuck in imperial times. I discuss pace, distance, gearing etc with cycling mates and they haven't a clue when I talk in metric. All still happy with inches, feet and miles.