How long do crowns last?

Can you tell me, how long can crowns typically last? Is there a standard duration or do they vary depending on factors like the material used, the patient's oral hygiene habits, and the location of the crown in the mouth? Additionally, are there any signs or symptoms that a crown may need to be replaced or repaired? I'm curious to know more about the longevity of crowns and what factors contribute to their lifespan.