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.
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
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 the vehicle requires a CDL to be operated, then yes. An owner/operator is subject to the same licencing requirements as a company driver.
Business of Wedding Cars in London does not require any particular license but the chauffeur license is required to drive a vehicle.
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.