How to change the age of salted fish to 18?

This can't be changed, because the idle fish platform is also the information automatically generated after our real-name authentication and uploading ID card, and can't be changed manually. If you want to change your age to 18, you can borrow an ID card of 18, and then upload and register another number, so that you can show that you are 48 years old. But if you register someone else's account, someone else can give you an account directly through your ID card.