What is the life of a turbocharger?

As a keen observer of the automotive industry, I'm curious to delve deeper into the workings of one of its key components: the turbocharger. Could you elaborate on the typical lifespan of a turbocharger? I understand that its durability varies depending on several factors, but I'm interested in a general estimate. What are the key factors that influence its longevity? Is it more dependent on the quality of manufacturing or the driving habits of the vehicle's owner? And lastly, what are some telltale signs that a turbocharger might be nearing the end of its service life?