Well, not sure how to answer to your question without having an idea of niche.
But targeting from 13 to 60 seems risky, as I don't really know what they could have in common: A 13 years old has no purchase power, like fast click things, short videos, while a 60 years old will like non intrusive type of website, with informations etc etc.
So maybe tell us (in a broad sense) what is your niche/product and we may help you better