S/S are very much the exception nowadays in the UK, especially when shooting clays.
When asked why I persist in using a S/S when I have a few O/U's and semi-auto's in my gun room (hang-over from my days as a shooting coach), I reply that 'I prefer to miss in style'.
As Dig says, shooting an O/U is just too easy! Makes one feel like one is cheating.
If I had to shoot to eat, there would be no contest. Thankfully the local butcher, baker and (unfortunately) supermarket still supply most of my needs!