How would Simba have come of age if Mufasa hadn't died?

This was something I wondered while I re-watched TLK last night. During JCWTBK, Simba behaves (as can be expected for a young child) terribly, mocking and ditching Zazu, who is in a position of authority over him. Obviously it's the events in the movie that force him to grow up, but I was wondering how it would have panned out if Mufasa hadn't have died. If Scar was completely incompetent and not very good at killing anybody.
How would Simba have come to learn that being king wasn't all bossing people around? He doesn't learn much of anything at all until he comes back to the Pridelands to see it destroyed. I have a couple of thoughts as to how it would have panned out, but I'm interested in seeing everybody else's first.
Sorry if this is disjointed or if there's been a topic like this before; I tried to use the search function but it didn't work and I just took a dose of Nyquil so I'm not too sure how coherent I am.
How would Simba have come to learn that being king wasn't all bossing people around? He doesn't learn much of anything at all until he comes back to the Pridelands to see it destroyed. I have a couple of thoughts as to how it would have panned out, but I'm interested in seeing everybody else's first.
Sorry if this is disjointed or if there's been a topic like this before; I tried to use the search function but it didn't work and I just took a dose of Nyquil so I'm not too sure how coherent I am.
