In the same way that facebook, twitter, google etc have teams of folk designed to hook you in and keep you addicted, the fast food companies have teams of people knowing the exact amount of fat and sugars to get you addicted to their products. Unfortunately many folk have an 'addictive gene', and it is very hard work for them to resist. Folk I know have had there stomach stapled, most of their gut removed, but still try and eat the manufactured rubbish. Of course, difficult for some to resist the advertising, red bull being a prime example. It was banned in many countries due to its harmfulness, but money changes hands at high levels, and now it is accepted, more or less world wide. afaik, coca cola don't sell much in Scotland, and I'm not sure if starbucks are in Italy yet.
For folk in an urban environment, ones used to 'sell by dates instead of using their nose, getting good fresh food would be a logistics nightmare. Over here, in UK, very difficult to get anything fresh in the supermarkets - tomatoes are wood chips and water, apples are a year old (kept in a cool gassed environment in large warehouses), lots of 'buy now, rot at home', mixed leaves in a bag filled with a gas to keep 'em fresh, and they wilt within half hour of bag being opened - but it's cheap compared to more artisan suppliers. Their used to be a season for apples and pears, beans, potatoes, etc. Now stuff shipped world wide, parts of the world being deforested to produce the latest fad of beans, coffee, whatever.
But few care. apparently many young families do not have a dining room table in their homes.
I suppose, as I grew up with the remnants of food rationing, in UK, after ww2, My taste is not the same as most younger folk.