I just came back to trials this year and it has revolutionized my 2-wheeled life. I goofed around on a TY175 in 1976, but my real passion at the time was MX. Then I had a TY250A in the mid-1980's, but I was on a tiny isolated shelf of land in coastal B.C. with little opportunity to improve my riding. After a brief break from riding of any kind, I got back to road riding in 1988 and I've been doing that ever since. Although my wife and I have traveled by bike in several European countries and South America, our road riding is a bit stunted where we live. We are on a peninsula with a ferry at each end, so we really just have one road to ride. So a friend is into trials riding and I borrowed her Scorpa 125 and, although it was gutless, I was hooked. I bought a 300 Evo in August and was even more hooked! The ignition on that decided to stop making sparks, so after a lengthy diagnosis, then waiting for a new stator, I bought a 2017 TRS RR280 in nice shape.
The coastal rain forest where we ride is spectacular. Mountain bike riding is big in this area and we use some of the same trails, mostly amicably. So I am reluctant to call most of our riding "trials", as it is more like very tight single-track. Some are using the term "adventure trials", but I don't know if that's a thing, either. I'm sure it's not a purist's idea of trials, but it makes me happy. In fact, I find the pure involvement of negotiating tricky terrain at speed a kind of in-the-moment bliss that I'd only otherwise get at a track day with the road bike. But with this, I'm loaded up and riding within a half hour, where a track day is the weekend and a helluva lot more money. And the off-road riding here is almost unlimited; I've barely scratched the surface of the trail system here.
What surprised me is how quickly a lot of those old off-road skills came back. Sure, I no longer have the stamina, or even the strength, but the trials bikes are so light, they make a guy look better than a dude of 63 should. At this stage in life, I don't want to see what kind of "sick whips" I can do on a 450. Having a blast and getting home intact has its charms.