By law motorhomes must be equipped with seat belts, not only for the driver and front seat passenger, but also for the occupants as well. They are provided for passengers safety but whether the occupants choose to use them and remain seated while the vehicle is in motion is a matter that is pretty much un-enforceable.
You can with motorhomes but not with trailers.
If it's in the compartment behind the driver, certainly. If you're watching television while you're driving an RV, that's highly illegal, and I hope you get caught and fined severely if you're stupid enough to do such a thing.
10 inches/ 25cm
You need to have your RV included in your insurance policy.
The temperature sensor needs Replacing.
RV's should come with their own blinds, but you can add aftermarket travel blinds that won't rattle when you're driving.
in parking garages
It varies according the country they're in... Anything from a short term ban to having to re-sit their driving test.
In Parking Garages
Yes, it is illegal to lay down in the backseat of a car while driving as it can be dangerous and distracting for the driver. It is important to always sit properly and wear a seatbelt while in a moving vehicle to ensure safety for everyone.
CDLs are required when driving around hazardous chemicals or 16 passengers or more. You should be fine driving an RV with just a regular driver's license, but you might want to call your local DMV to get a quick confirmation to be sure.
Some people think it is quite difficult to own an RV, while others think it is worth it. You may want to consider some things before purchasing one, such as that it is more difficult to drive than a small car. You don't need special driving classes, but you do need to practice driving the big RV on the road and in small places. Dealing with the sewage lines can be challenging. Also the cost of maintenance sometimes is more than it would be to drive a car and stay in a hotel.