Only if they're operating the vehicle on a for-hire basis (e.g., the people who deliver the RVs from the manufacturer to the dealer). Otherwise, no.
Yes, you must apply for a recreational vehicle license. You must have license plates on the back of your trailer.
A bicycle does not require a license to operate.
As a recreational vehicle.
The requirements are motor vehicle operator's license, pass a knowledge test, pass a driving test in the type of vehicle you wish to drive and pay a licensing fee.
Yes
Most, but not all insurance companies will require you have a drivers license to buy liability insurance for your vehicle. All of the 50 United States however require you have a license or permit of some type before you can drive your vehicle on public roads.
Yes
If the vehicle requires a CDL to be operated, then yes. An owner/operator is subject to the same licencing requirements as a company driver.
Yes, unless you fit the criteria to fall under the farm truck, recreational vehicle, military vehicle, or emergency vehicle exemptions.
A recreational vehicle is a motor vehicle used for recreational travel by road and is usually a van such as a camper or mobile home.
A recreational vehicle is a camper type vehicle with an engine. A cruiser motorcycle is not a recreational vehicle but a motorcycle.
If I'm not mistaken, it's just another way to describe a "driver's license". I'm sure they do it to freak people out when filling out forms.