Why can't I download tunes in FH4?

Hi. I have a question about Downloading Tunes and Themes in Forza Horizon 4. I'm 15 years old, more than old enough to play FH4, but I still can't access the function because it says that it is blocked due to the Xbox Live parental controls. Is this function from 18?

You can also deactivate it yourself. I just don't know where and how it works.

Yo. I've got it now. Anyway, thanks for the answer.