I think it’s a learned thing to dislike vegetables. If you’re exposed to them enough as a kid, you’ll like them. My background is Hindu and I come from a caste that practices vegetarianism, so from a very early age I ate all kinds of vegetables and found almost all of them to be delicious. Sure, I complained and asked for fast food every now and then, what child doesn’t? But I still grew up loving broccoli, cauliflower, okra, brussel sprouts, cucumber… you name it! But not eggplant, eggplant I will not abide. 😉
But I also agree with what Shirlee said about processed foods being addictive. Processed food companies develop their products in a very methodical way, they research what flavours people crave, they research the best ways to combine these flavours, then they find ways to fine tune their products so that they light up the pleasure-seeking centres of our brains. Processed food IS addictive, it’s developed to be so on purpose, and many companies who make this stuff really don’t care if their food is ultimately detrimental to our health and well-being.