how fire extinguishers put fires out?
The other issue in the US (and there are similar laws elsewhere) are child safety laws, which require a lot of records keeping, even if you're not producing your own product. Read here: cpsc.gov/about/cpsia/cpsia.ht
Take the motorcycle safety course first. They're pretty good at teaching the basics to first time riders. Don't buy a bike that is bigger than you can confidently handle as a beginning rider. Most accidents are caused by inexperienced new riders in their first year and a half or returning riders who haven't been on a bike in 10-20 years going out and buying too much bike right away. Being new in the riding community, You should start out on something a little smaller and cheaper until you get some experience under your belt. Try not to be tempted with a sport bike right off the bat. Even a 600cc sport bike has a lot of juice and goes very fast very quick. A better option would be a 650cc or below cruiser or standard bike. They still go the the speed and have a more upright riding position. Motorcycles really aren't that much different than cars, in fact in a lot of ways they're simpler to work on with a good service manual. I haven't had a bike in the shop except for the first maintenance in over 30 years. And most important, Wear good protective gear. Including a helmet.