Why not go to a park then? Or get a legal bike and ride it? As you can see from the Doc, some of these kids aren't even old enough to get a license, but yet you think they are safe riders?. I grew up around all of this, the areas in the video is near my old hood ( Edmondson ave/ Irv town for those from Baltimore ).. Im not speaking out of my ass here..trust me
Edit: And a lot of these nikkas ride during the day time when people are at work, because they aren't attending school or they hustle..
So having a license means you know how to drive?
The times I've encountered dirt bike riders, they always slowed at corners and checked for traffic. I've never seen them riding on the sidewalk either.