What about inviting the kids (with parent's permission) to go for a short ride with you around the immediate neighborhood while you are wearing all your cool gear? If they will ride with you they'll have to follow the traffic laws . I'm thinking they might automatically just follow you without you saying anything.

Worth a try; otherwise I don't know. Some parents are kinda touchy, but they may view you in a positive way as an "authority" if you talk to them while you are wearing full cycling gear.