I dont ask to make the game 6+.
I ask to put there an option to turn off.
Its the same way to have something with the bear. Or just ignore it cuz I don't care. To have the choice.
There seems to be a language barrier here, no offense. Just trying to understand you. For the purchase you made on Stadia, you need to talk to Google and show them the receipt.
As for getting this game for your children, I would recommend NO. This game has explicit sex scenes and the nudity filter is just so you don't see private areas but the sex will still happen. 12 and 14 years old is too young for this game and I honestly don't think it's appropriate.
Lastly, I would advise you not to put any personal information on the forums as you never know who is behind the screen.
