He's never had to learn or work hard at anything before because his entire life has just been handed to him. I imagine (hope) that as he learns more about the actual world around him (and that it doesn't revolve around him) that he'll focus a little more on bettering it and not just go for another round of golf like he's on a four year vacation from life.
I mostly agree with this post (although Trump should get at least a little bit of credit for his management of his business). Hopefully he will learn on the job, and avoid any serious missteps in the meantime.