As a parent, it's your job to do two things with your children. Stoke their loves and interests, and keep them safe. Those are not mutually exclusive, as you can absolutely do both at the same time. And it's something I've strived to do with my own children who see my passion for motorcycles and want to emulate me.
Helmets are a must, as is other protective gear. And following the rules of the road, watching for other cars, keeping your eyes up and watchful, doing the right thing, and more are paramount to their safety and them being allowed to ride their respective machines. They can have fun, but if they're not being as safe as they can, or disobeying the rules, then they aren't allowed to touch them.
Respect the machine, just like you'd do with a gun, as the consequences of both are dire if you get them wrong.
