Let me add my own perspective, though, as a member of the "youth."
The other night, my dad freaked out when I rode my moped home from work (in the dark, at 11pm). He's not real thrilled about the moped business to begin with, but that's because he worries about my safety -- he just doesn't want me getting hurt. I appreciate his concern and realize that he's only freaking out because he cares, but at some point, he has to let me choose my own path, even if it's one he doesn't particularly like.
I can't imagine the pain you feel when you lose I child. It's not something I even want to _begin_ to imagine because the pain of losing a friend or even someone you didn't know well is bad enough.
Most people here ride mopeds because they love doing it. They love to ride, they love to fix, and they love hanging out with people who share their addiction. That's how I feel, anyway, and I don't think I'm alone.
Here's the main point, though: ALL of us are someone's kid, someone's friend, or (in some cases) someone's parent. We ALL have people who love us and would suffer tremendously if we were gone, and we ALL take the risk of dying each and every time we ride. Should we ALL stop riding just because we want to save our friends and family the heartache just in case we die riding mopeds?
No, we shouldn't stop riding. If you love what you're doing, you shouldn't stop. Maybe that's selfish of me to say, but I think I should be allowed to indulge my obsession, even if it is a little more dangerous than other activities like chess or knitting. I think it would also be selfish of my friends and family to ask me to give up something I love just to spare them some worry.
If anything, Matt's story proves the limits on the idea of being careful. It doesn't matter how careful YOU are; it's the rest of the world you have to watch out for. Unfortunately, it is impossible to always predict the actions of other drivers, and this can have tragic consequences.
You're right. No parent, friend, or other loved one should ever have to endure that kind of pain. But if that's the case, we should all stop riding right now. The only way to prevent yourself from dying while riding a moped is to stop riding.
I doubt there's a single person on here who hasn't been affected by this tragedy. It's a slap in the face, a kick in the stomach, and a reality check that we are doing something that can be dangerous. I wish we could do what we love without putting ourselves in danger and making our loved ones worry, but those two things are mutually exclusive in this day and age and for this particular addiction. It's give and take -- each party has to understand each other's feelings and be willing to compromise.