@Boci - what you gave is an IC Explaination.

Quote Originally Posted by Corran View Post
That's where the issue is. You are thinking of characters as classes and not as persons. Do you also require IC Explaination, Background, or History for why the sorcerer hit level 3 and can now quicken spells? What if it does not satisfy you? Do they not get the level?
Actually, I was trying for the reverse.
Where the Explanation, Background, and History was used for how the Character became that Class/es.

But, to answer your question, no - while I encourage 'training' to gain new Class abilities and powers; but most of the time it's not really required.