You can't do this. Must have an adult ID card, facial scanning verification. I once had the same idea as you. If you really want to broadcast live, you can try it on the mile, but it is still not recommended that you broadcast live. Minors should concentrate on their studies.
No, now the state requires real-name registration system to register. If you want to open your own live broadcast room, you must have your own ID card. In theory, you can't apply for 16 years old or older, but many platforms seem to accept opening through other documents, such as household registration books. If you don't have an ID card, you can try to use the household registration book, which also has your ID number, so you can do authentication.