[del677]

What I've seen work in the past, is if you can find any adult who's old enough to pass as a parent or grandparent or relative, and get that adult to bring the minor in and just act as if this is their kid, and sure maybe the kid has a different last name, but people get divorced and remarry, and families have aunts and uncles; just confidently act like this is my kid, I'm responsible for him/her, and more importantly (what they really care about), I'm the one paying for this visit, and here's the kids insurance information (if he has any insurance), and here's my credit card, and I'm obviously over 18, and they don't ask any questions.

Some places like Planned Parenthood you don't even need to be 18.