He has no adult skills. He assumes no adult responsibilities. He expects indulgence from others. He is petulant and haughtily spoiled. He is capricious, infantile and emotionally labile and immature.
Narcissists suffer from repetition complexes.
Like certain mythological figures, they are doomed to repeat their mistakes and failures and the wrong behaviours which led to them. They refrain from planning and conceive of the world as a menacing, unpredictable, failure-prone place, at best a nuisance. All the above culminates in acts of explicit self-destruction. Some of them engage in criminal activities, sometimes compulsively so. The narcissist is very likely to engage in White Collar Crime.