if you're unaware, Youtube will be using an A.I-powered system to determine your actual age. If the system deems you as underage and you don't believe it, they will politely ask you to provide evidence such as your gov't ID, a small video showing your actual face, or information from your credit card. it will begin on August 13th and they are apparently being forced to do this by the Australian government since those fellas down under added a law where you are not allowed to engage with the internet if you are below 16-18+.