> "How old are you?" I asked.
> "Twenty-five."
> "Of course you are."
You will never, ever, ever do good design while holding your audience in contempt.
They are fully and completely entitled to their aesthetic preferences and those preferences have absolutely no bearing on their worth or right to enjoy the products they use in whatever way they choose to use them.
If you can't have enough compassion for your users to design something they love respecting who they are then you shouldn't be designing for them.