Parental consent needed to play online but i am an adult?

Hello, my name is Surya, and I am an independent advisor for the Xbox Community.

Even if you updated your Microsoft account's birthdate, Xbox may still recognize it as a child account if it was set up under a Family Group. To fix this

Go to https://account.microsoft.com/family/home.

Sign in with your Microsoft account.

See if your account is part of a Family Group and listed as a child account.

If your account is part of a family group, you can leave the group and it should fix your issue.

let me know if this works, and update me on that Thanks!

That can happen only when your child becomes an adult, otherwise he will always need parental consent

Your friend will need to follow solution 2 here:

https://beta.support.xbox.com/help/family-online-safety/child-accounts/why-am-i-asked-for-parental-consent

I apologize for that but I'm glad you did find the solution and everything is working the way you want it.

Why you're being asked for parental consent

If the date of birth on your Microsoft account shows that you're under a certain age, Xbox is required to request parental consent for you to use Xbox Live.

If you're an adult, but you got a message asking for parental consent, it's because you're a child in your Microsoft family.

Solution

If you're of an age that requires parental consent, follow the steps on your Xbox to have your parent sign in and add you to their Microsoft family.

If you're over the age requiring parental consent, have your parent remove you from the family. They'll have to sign in to
account.microsoft.com/family, select your profile, and select
Remove.

If you're unable to clear the message, contact Xbox Support.