Bradders, that is possibly because people "incorrectly" portray shooting disciplines of which they know very little about as being X, Y & Z, quite often these portrayals are less than favourable.
That in itself makes it very hard to attract new blood to any discipline, before you even go to the expense of organising matches, training sessions, taster days etc ect....
We are all shooters after all and maybe, just maybe we should be trying to help the sport of shooting "Wholesale", rather than just trying to score cheap points against sections of our own community........
Yes, I'm a benchrest shooter, I make no bones about that, but the amount of complete and utter twoddle I hear talked about the discipline is just ridiculous and yes it sure is harder to convince someone to give it a go, when they have had their head filled full of rubbish in advance of ever trying it.
So I speak from some experience.