If you get a pocket bike for your kids, get the electrical driven ones. They are safer and easier to maintain. And they can pick up valuable skills and if supervised properly, learn a couple of safety rules when they grow up and are ready for the road. Don't waste their leisure time. Get them pocket bikes and have fun while picking up skills and safety rules during their leisure time.
Plus if you ever go on a picnic or camping trip, you can easily bring these pocket bikes along and your kids can have loads of fun. Adult not excluded. According to the above website, someone managed to squeeze 5 mini pocket bikes into the back of the truck which is hooked up with a trailer. They brought the kids along and they had an exhilarating time.