I am the one that started the Gold Family Pack and my wife (24) and my older brother (34) are both part of my Family Pack.
I have changed all of the appropriate settings to set them up as Adults, yet they still cannot download any mature content, or even listen to Last.FM. I called MyXBOX but the guy on the other end seemed just as confused as I was. He first said that because I started the Pack, I am the adult and the others are listed as kids. Then I explained that in the options you can switch their settings to Adults, and that seemed to be news to him as he checked it out on his end.
They used to be able to download anything they wanted to before we setup the Family Pack, so I know them possibly originally typing in the wrong birthdate couldn't be the issue.
The only way I was able to get the Homefront Demo on my wifes Xbox was by transferring my gamertag and downloading it on hers, but I don't want to have to do that everytime.
Has anyone else experienced this with the Family Pack?