Google Account 18+

Hello everyone, For years now, I’ve been using a Google account for my Android phone and YouTube. Recently, however, I’ve noticed that there are more and more apps I apparently can’t access because—according to Google—my age hasn’t been verified. They aren’t sure if I’m of legal age—which, given how long the account has existed and the type of content I consume, is absolute nonsense. These are just completely normal apps. Can any of you tell me how I can switch my account to 18+, or alternatively, where I can buy a verified 18+ account? I’m 30 years old, but I really don’t want to provide Google with any more personal data, ID documents, or anything of the sort… I’d really appreciate any help you can offer. Best regards.