I don't know about you guys, but when I was a kid, I got snubbed lots of times, by car guys. They just kind of brushed us off a lot of the time, when we'd want to see their car.
I don't do that, now. When I get comments or stares from kids, I try and take the time to talk to them, and also thank them for their comments or interest in the car. These are the future guardians of the hobby