Comment by Terr_

> In a world where you're probably reaching adulthood with your brothers and sisters without encountering any sibling death, a story with 'unfair' death

Two hot-take theories to add onto the pile:

1. In a traveling oral tradition, the teller doesn't want to memorize lots of different versions known in different towns or regions, and they also don't want people to get angry that your version doesn't have some key things from how they remember it. This leads to compromises that don't quite fit together.

2. If you can only store one version, you've got to decide between "fun" versus "faithfully honors the memory of our elders and how they told it", and maybe the latter wins. However with the printing press etc., now there's room to do a bit of both, and the fun version sells better.