operative word is child.
this law does not outlaw the practice, it just defers it to the age of majority. (with a religious exception)
is abortion on a minor deferred to age of majority?
I believe part of the outrage is - there is no religious exemption. Effort to include one was voted down
“No account shall be taken of the effect on the person on whom the operation is to be performed of any belief on the part of that or any other person that the operation is required as a matter of custom or ritual.”
http://blogs.sfweekly.com/thesnitch/2010/11/san_francisco_circumcision_ban_1.php