Some players are happy to play characters who are just numbers. Characters defined by their exceptional ability scores, high defenses, big weapons and awesome damage potential. I’ll admit I’ve played a few of these characters myself. This type of PC is alright in the short-term, but for long-term campaigns you’re likely to want more. Put some thought into who your character is, beyond just the numbers.
This extra level of detail is certainly not mandatory, but does pay dividends over time. The enjoyment you get out of playing any character is directly related to the amount of work you put into creating and defining him. If you’re not interested in doing any more than the minimum requirements necessary to get your PC created and into the game, then that’s your call. But if you are interested in really trying to make your PC a unique individual, then we’ve got some resources to help you flesh out your PC.