Should an under-aged girl get parental consent?
Under-aged and abortion is a sad combination. Parental consent can be tricky, in scenarios Scrap describes. But it can be equally tricky to go around that consent, and have a teen go through an abortion she does not want, because she is forced by her boyfriend to have one. There it might be the parent who notices the girl is being forced to get it. If it can't be a parent, then a professional at the clinic should be checking with the girl if this is what she wants.
There are also teens who are not safe at home, mental, physical, sexual and emotional abuse happen. What right does a parent have to decide with a teen, if that parent cannot provide safety for that teen at home? (In the case of sexual abuse by the (step)father, it is very likely that an abortion will be forced on the girl if she does not want an abortion too btw.)