Just wait until your entire kingdom forgets everything it once knew because it adopts a new culture.
Ah yeah. That makes sense. I mean, in the context of CK3 so far.
Because otherwise, no, a country suddenly forget they knew heraldry does not make sense.
I appreciate the fact they gave to culture some content. That's smart. It's like the religion tenets. It is interesting. Unfortunately, once again: half-baked, early-access, place holder concepts with no general overview of logic consequences. Gosh.
Once again CK3 could be so great. But I dont want to wait confusing DLC to get it - with EU4 I stopped getting DLC because every one of them since quite a while make the game more patchworky and gamey. A new major release should be time for a clean slate. Not an empty slate.
In that, Hoi4 was succesfull (despite AI shortcomings)
Is that really odd? You may have grown up in West Francia and not know how the Witan works, but when the messenger comes from Wessex and tells you you've been chosen as king you can head right on over there and take what's yours.
Yeah it is really odd. It is not like it is a late concept that most courts are already tied since a while.
To keep with your example, Saint Bede, the Venerable Bede, documented Wessex. And Ecgberht was for a while a refugee in the court of Charlemagne, son of Pépin le Bref.
So can we believe that he would be clueless about concept as important as inheritance law in the court of Charlemagne for instance?
And, that's the most important, can we believe that a kingdom that have some inheritance rule enforced since 4 generations would suddenly, out of the blue, completely forget this rule, because the new king is a peasant from another culture? Change it, ok. But forget? The guy just crowned instantly forgot how come? And the rest of the country, the vassals, all along, even the ones that stands to loose a lot?
If it was really like this, potential peasant uncultured heir should have 10000 murder plot on his ass.
But, seriously: no, once again, half bake, inconsistent. There is no polite way to say it.