i agree with what hugh's saying about some people genuinely having no "taste" in music (although i think you are both saying largely the same thing really just evaluating it differently). it's not that their taste is bad, it's that they literally don't care what they listen to particularly.
food perhaps isn't the ideal comparison because if anything the fault with food taste is being *too* picky. food is a necessity - music isn't, and therefore caring about food can get a bit precious, whereas caring about music is a kind of luxury. exploring music is an activity done for pleasure - some people genuinely don't eat for pleasure, whereas other people view music not as a thing to be enjoyed in itself but a thing to augment the enjoyment of something else, like hanging out with your mates and getting smashed.
music's more like fashion. having a very particular taste in clothes is one thing, wearing whatever's in because that's what's agreed is good at the time, it's cheap, accessible, does the job and is generally inoffensive is what most people do i think...
i don't know about the top 40 crue being mostly women though!
