I suspect it is more that most people don't understand that it isn't viable unless incubated, so to them it seems kinda 'icky'. I am sure her grandma knows this, but many people have asked me if there might be a chick inside and how am I sure there isn't if there is a Rooster around. Also, regarding bug, worms, etc. It is much easier, in that sense, to 'fool yourself' by buying 'hygenically' preppped & 'sealed' eggs, where you don't have to think about where they came from, what they ate, nor how they lived. It is just plain easier.
I gave a co-worked some smoked chicken (she said she would like to try it). Months later I found out she had thrown it out because she 'couldn't eat it'. She had come to my house ONCE and seen my chickens...a
year before. She said she couldn't eat it because she 'knew' my chickens. I asked her how...it wasn't even one that was hatched yet when she came over...she said....but I've seen them, and they all looked happy...I couldn't eat that, I'll get my chicken from the store, thank you."
Honestly, what p#^&ed me off the most was she threw it away instead of giving it back or offering it to a friend. I did, later when I could say it calmly, tell her how much it bothered me that she threw it away, because that meant that the chickens life was 'wasted'. He died to be thrown away!

So disrespectful of him and his life (I didn't say that part). But, it all goes back to "I'll have my steak and roast chicken...but I don't want to know where it came from."

We want to continue to be omnivours without having to deal with the realities of being an omnivour.