That said...I don't know about you all, but I like to play mainly historical/fantasy mods, where there's a storyline and the specific characters of that time in history/fantasy lore. I find very enjoyable to play in a world populated with all those characters I am familiar with; but not much with the following generations, as they're all random and not part of the lore. It will be amazing to play a LOTR mod and battle side by Faramir, Gimli and others, but if they are all dead, I see no point to carry on. Ironically, I don't care if my character would eventually die, because I am the player, more like an observant who is not originally part of lore - even if I will be the character who will most actively shape the world.
I will definitely try the aging/heir/death system during my vanilla play as soon as I can. A lot of effort is being put into creating a solid lore into Bannerlord, but we're not quite there yet, so I don't really care much about the characters.