Exactly. More importantly the store owner stocks what he sells, or what he thinks sells. If more 7 year old girls came into the store everyday, he might stock something more appropriate for that audience. It is like asking a Harley Davidson dealer whether he stocks Toyota Prius's.

Young teen males buy these comics because there are half-naked, caricatured, over-sized breasted women in them. Later on they just buy porn mags, or more often these these days, just download porn from the internet.