Sneed's Feed and Seed - Sneedville

Okay but are we going to gloss over that this guy MARRIED AND MOST LIKELY RAPED A CHILD????

I think that the author meant by saying this is that cultural norms that we normally think of as fixed, meaning non-changing, actually change as society progresses. I'm other words when that dude married that child, that seemed normal, while today that's definitely not the case in today's society.