I think the reason behind making Kara a bit goofy and awkward probably has more to do with just making her as accessible and likeable as possible, and isn't so much about appealing to any one demographic.
At least judging from the trailers, she certainly seems like a very fun and engaging character to watch go on this journey.
At least judging from the trailers, she certainly seems like a very fun and engaging character to watch go on this journey.