I want to get out from Minecraft Beta but i cant why?

I'm currently in the Beta for Minecraft Bedrock Edition on Windows 10. I'm trying to get out of the beta as I don't really find much use in being in it anymore, and I also want to play online. I believe I got into the beta back in summer of 2017.

I looked up how to get out of the beta and I read that you need to use the Xbox Insider Hub app. However, when I click on the app there's an error message saying "We've detected that the person logging in is younger than 18 years old. Because agreements
within the Xbox Insider Hub ask for permission to collect feedback and bug reports from participants, we require an adult to accept those terms due to domestic and international laws. At this time, we are unable to enroll you as an Xbox Insider."

What I don't understand is why I was able to get in 2 years ago. And also why I'm technically still in the Minecraft Beta and not even kicked out. All I want to do is get out of the beta so I can play online with my friend.

Thanks to everyone who can help me out with this,

-Steven

[Mod Edit: Moved from Windows Insider]

Hi! Did you have Insider Hub app on console? or you play on PC? Just install this app and sign out from beta program if you in.

I'm having the same problem!

Try to get out of Beta Preview on Xbox Insider hub app

why cant I get into the beta forum for it ?