In some situations the risk that a bag doesn't make it to your destination is too great to take, and therefore it's necessary to carry on. If checking a bag ga

In some situations the risk that a bag doesn't make it to your destination is too great to take, and therefore it's necessary to carry on. If checking a bag gave the same assurance that it would make your destination with you as carrying it on person, fine: make checking a back the only option. But in reality your checked bag is less likely to meet you at your destination than if you'd have just carried it along with you.