An Accepted Culture help?

[unmerged(570486)]

I've converted my game from CK2 and managed to build myself an empire spanning from Northern France to Norway, but I have a huge amount of varying cultures.
I began as Scotland, changing my primary Culture to English. My only accepted cultures are Danish, English and Scottish but I'm afraid I might lose them? Is there a way to accept other cultures? How do I prevent my cultures from becoming non-accepted.
Thank you!

 

[Willem IV]

you lose the accepted status as soon as a culture drops below 10% of your total base tax

 

[Alerias]

Yup, as Willem said. So its inevitable to lose accepted cultures as you grow large unless they are huge, and even then.

Its a strategic choice; either you take the non-accepted culture hit, or you spend DIP power to convert em to the right culture.