Why did you start
I didn't want to die on a road bike! A friend lent me his Scorpa for a day and I was hooked good and proper
Why do you continue to ride?
Loads of reasons! Escape from the wife and kids for a day, dodge the DIY, have fun whilst exercising, meet up with mates, compete with others, hopefully continue to improve etc.
what would get more people riding trials?
Demo's at MX and road racing venues to entice existing bike riders to have a go, public shows like Crosser and Clarky perform in the UK...