When I was contemplating returning to trials at the age of 40, having last competed as a schoolboy on a TY80, I took my wife to the Sheffield Indoor to try and explain what it was all about. I left determined to start again (which I did) and my wife left saying "You'll never be able to do that - you'll kill yourself!" (and she was right!)
The point here is that those who may be persuaded to try trials but have never seen the reality of a novice route at a club trial would also look at top level competition and think that the sport as a whole is completely out of their reach.
We need to present club participation as within reach of mortals. Something that 'Kick Start' did for me as a kid. I think the ACU 'Try Trials' area at the NEC show is a good example of the right type of promotion for trials.