13 at least
Yahoo email account is free to all users of all ages.
No because i dont know your email address and this is not classed as a question, but someone could yes.
Now, if you 100% sure about deletion of your Yahoo Mail account then follow these simple steps 1. Visit this Terminating Your Yahoo! Account page. 2. Insert ID & password of your Yahoo account....
probably...13? I have gmail and I thinks its awesome