Incredible fix! Avacadobeard error! Not able to play online games. Microsoft privacy settings.

Okay, so I myself had this problem and had to fix it. I couldn't believe i spent so much money for a game that i can't even play, so i started digging, but found jack s... .
sooooo, i went for a ride on my scooter to clear my mind.
This is what i came up with:
I started installing a game that i never played b4.
It said: Hi @Xx_NewInvasion_xX
I thought: this is it!
i got this username back in the day when i was playing xbox360 with the boys, you know how it is. So... i thought, i'm going to try to change the privacy settings on this acc. Didn't work. But then i remembered... i had parental supervision back then. It must still be activated. So i go to this website: https://account.microsoft.com/family/
i log in, with the email from the username that displayed when i started a game i never played b4. aka the account linked to the microsoft store. i went to the bar where it said "family" clicked on it... and there it was!!!! HOPE!
I was doubting about pressing leave family group or something like that. It was next to manage permissions. But it was my last hope... so i clicked, no turning back. I go back to the xbox website, clicked on privacy & online security i know ya'll have tried this. and it opened. The page i was looking for. I went to the section xbox one/windows 10 and put everything on allow. Now, the game is installing again (cuz i deleted it bcs of rage xd)

IN SHORT:

1. Check your linked xbox acc by installing and playing a game you've never played b4.
2. Check to see if you can change your privacy & online security settings from that acc.
   2.5 if that works, ur probably set and the problem was that u changed the settings of the wrong acc.
3. if that doesn't work, check if you have parental conrol enabled on the account you see appear when installing and playing a game you've never played b4.
   do that by going to this link: https://account.microsoft.com/family/ log in with your account that appeared.
4. leave the family group.
5. Go back to the xbox page to change your privacy and online security settings for that acc. It should work now.
   6 install the game again bcs you've deleted it bcs of rage, make a video about this solution and give me some credit :).
6. ENJOY!