There is any advantage to use this decision in provinces that have a culture that is in my main culture group?
For example - I am playing France.
1/ Do I gain anything if I remove the core for Normandy if I annexed them completely (there is no independent Normandy anywhere)?
2/ I used settlement policy in Brittany and all 4 provinces now have Cosmopolitan culture. Do I gain anything to remove the Brittany cores?
I mean, anything beside avoiding the remote possibility to be forced to release an independent nation at the end of a very bad war.
For example - I am playing France.
1/ Do I gain anything if I remove the core for Normandy if I annexed them completely (there is no independent Normandy anywhere)?
2/ I used settlement policy in Brittany and all 4 provinces now have Cosmopolitan culture. Do I gain anything to remove the Brittany cores?
I mean, anything beside avoiding the remote possibility to be forced to release an independent nation at the end of a very bad war.