Though it’s odd that one of the first things to happen is to establish that he was rich, famous, and popular. Not that this mattered too much along the way.
The "chosen one" archetype in a nutshell. Luke Skywalker learns he's part of a royal bloodline, a child of prophecy and a super-powerful space wizard. One of the (few) things I respect the sequel trilogy for was trying to deconstruct this, showing how disillusioned Luke then became with his legendary in-universe celebrity status.
