to keep them cold and prevent rotting probably
It's for refrigeration and convenience. Eggs are often used with dairy products or for breakfast.
I assumed it was for refrigeration and convinemece but I do still find it a bit odd that all eggs don't just get their own refrigerator section (regular chicken eggs or different colors along with other egg products such as eggs already scrambled in a pint or quart)
also now that I think about it more it makes sense as to why some people who are allergic to dairy also sometimes confuse eggs with dairy
which leads me to my next question that I have wondered about for eons (since my middle school years)
why aren't humans considered scavengers (because of the process of going to the store to get meat that isn't exactly fresh nor decomposing rapidly)
I can understand why we aren't considered that but it's still interesting to think about but also I feel like it's maybe a stupid question or thing to think about
edit: used the wrong word I forgot the word decomposers (the word I meant to use instead of scavengers)
edit 2: just checked and yeah scavengers was the word I was thinking of (for example: the thing that vultures to do dead things in the side of the road)