What age should you get a DEXA?

When should an individual consider getting a DEXA scan? Is there a specific age range or should it be based on personal health factors? Can a DEXA scan provide valuable information about bone density and potential future health risks, regardless of age? Is it recommended for individuals who are concerned about their bone health, even if they don't have any current symptoms or conditions? And, if so, what are the potential benefits and drawbacks of undergoing a DEXA scan at a younger age?