for you not to fly out of the car
drive carfully and wear a seatbelt
Highly unlikely as the ribcage is there to protect both in either seatbelt configuation.
No, an air bag will only protect you as designed if you are ALSO wearing a seatbelt.
The seat belt keeps you from being ejected from the vehicle.
It is for your safety. More people without a seatbelt die in car accidents than with seatbelt. So I require to use the seatbelt. See here for more information about seatbelt usage: How_much_does_it_cost_to_replace_a_window
why it is ok to not wear a seatbelt
Buckle your seatbelt!
because it's a belt for a seat.
The seatbelt
you are wearing the seatbelt.
The word seatbelt has two syllables. The syllables in the word are seat-belt.
By putting your seatbelt on! Not wearing a seatbelt is one of the dumbest things you can do. Seat belts save lives.