And your chance of being conscious during and after an accident, so you can unbuckle and get out, is much greater if you are belted. Every air bag system ever offered for sale has required the use of safety belts. Even if you're in a vehicle that has air bags, you still have to buckle up to get the most protection. That's true not only in frontal collisions, but especially in side and other collisions. Being a good driver doesn't protect you from things beyond your control, such as bad drivers.
Safety belts are for everyone.
This part is only for people of adult size. Be aware that there are special things to know about safety belts and children. And there are different rules for smaller children and babies. Follow those rules for everyone's protection. The driver has a lap-shoulder belt.