You hit the nail there. Current trials riders seem to have forgotten those times, or maybe most didn't even ride back then. I think the biggest reason for trials getting much smaller over the last five years or so, is because the bikes have become so specialised that ordinary people don't really associate them with normal bikes in any way. And on the other hand, riders in other diciplines often don't want to try out trials because the bikes are so freakish, almost impossible to sell if you get bored with it (atleast where I live) and you basically need a car to get from spot to spot in many cases. Meanwhile BMX has grown a lot. As far as I know, there are maybe five active trials riders in Helsinki and surrounding area, with about one million inhabitants.