Ok... first of all lets get some perspective. We are enthusiasts here. We care. We've seen all the worst that can happen when randoms do randoms things to our cherished property.
But to the average joe, touching, rubbing against, hopping on someones car or bikes is nothing.
I say that coming from the perspective of someone who wanted to start detailing cars. Most people don't give a rats @ss what their car's paint looks like. Or if there are scratches on it. etc.
That's why automated touch washes still exist...otherwise they'd go out of business.
Novelty things get people excited, which is why they're curious as humans to see how it works, hence the touching, hopping on to see how it feels etc. I'm not saying i condone it (actually quite the contrary) but i can understand where they're coming from.
ever notice all the ropes and braided lines around displays at shows? even the enthusiasts sometimes cant help touching
and +1 for beat your kids