I think by "weird", Sitethief means "non-standard build", and is concerned that such will put her little sister off on the wrong foot. She's correct. If you're gonna teach 'em, teach 'em right.
If Little Sis isn't much for number-crunching, a more story-based approach to character creation is actually a very good way to go. From the questions asked and the answers received, the options given and the choices made, you can pretty much nail down what kind of character she wants to play and tie that back to the mechanics of character creation in a very organic way.
Keep in mind that "freedom of choice" is not "freedom to choose anything and everything". As you're leading Little Sis through the process, craft the choices to cut out options.
"Does your character use magic?" neatly eliminates a boatload of choices, for example.
"Is she good at it?" helps narrow down the relevant ability score AND can be used to determine full caster vs hybrid.
Getting to a specific class choice is going to be the hardest part. Once there, you can simply say, "OK, wizards have a reputation for knowing this sort of stuff," and list the class skills. "Pick the things you'd like to be able to do. You can pick <<number of skills at max rank>> to be really good at, or you can choose to be trained in more skills, but not be quite as good at them."
Once you have skills, then explain the concept of feats. "Each character knows some special tricks that make them different from others of the same class. For example, your wizard might have a special talent for a certain kind of magic that makes it harder to resist her spells (Spell Focus). Or she may have figured out how to cast a lot of spells without the little props needed by other wizards (Eschew Materials). Based on what we've learned about your character, here is a list of special tricks - called Feats - that your character might know. Pick one."
By providing a short list, you give her the power to choose, but also limit her choices to things that a) aren't overwhelming, and b) won't gimp her character.