Yes, they are motor vehicles, and they are all equipped with them. The driver and the front seat passenger should be buckled in, but I can tell you that I, myself, have been known to move around in them while they are in motion and I suppose that many/most do.
you don't have too. it is more comfortable not too. if i was in a RV i wouldn't have seatbelts im the back on the couch or bed just in the drivers seat.
Everyone should wear seatbelts. They save lives
If the bus has seatbelts on it (for ex. a charter bus) then yes, you are required to wear a seatbelt. If you are referring to a school bus, then no, seatbelts are not required.
Safe.
yes everyone does. . . .
Yes, all passengers must wear seat belts
In the old days seatbelts were optional so most people never wore them. Unfortunately a lot of people died in car accidents. Most people who died in car accidents didn't wear their seatbelts. In the late 80's the government past the law that children had to wear their seatbelts but adults didn't have to. A few months or a few years later they past a law that adults had to wear their seatbelts. Seatbelts save lives but there's still a chance that you can die in a car crash anyway but it reduces your chances by 80%.
you have no reason just to not wear it. you have to... its the law\
If the law in that area requires the use of a seat belt, then yes, they do.
deciding the constitutionality of a state law that requires drivers to wear seatbelts
All do have seat belt laws except New Hampshire.
Age does not matter since the law says all passengers must wear seatbelts.