In US some people get 150 years in prison. is not for life. ain't they going to die anyway?

In the U.S., sentences like 150 years are often symbolic, meant to ensure that a person will never be released, even if they become eligible for parole at some point. These lengthy sentences can reflect the severity of the crimes committed and serve as a deterrent to others. While it's true that most individuals will not live to serve such lengthy sentences, the intention is to emphasize accountability and the perceived danger they pose to society.