This is a hard one, but I tend to lean Scotty's way. We are to obey our parents, our elders, women obey their husbands, the laws of the land, honor the king, etc., but then there's a scripture that says its better to obey God than man. (
Acts 5:29) I know when it comes to my submission to my husband, the line is drawn should he ever ask me to go against God on any matter.
I hesitate to advise anyone to go against their parents.

But I do recall a few instances in the Bible where children went against their parents for the sake of righteousness.
Even if teen gets baptized in spite of his parents' wishes, he doesn't have to be defiant or disrespectful to his parents regarding the matter. There are times when it is permissible, and even
appropriate to disobey your parents.
IMO, this is one of them, because salvation is a personal experience between the convert and God, not parent-led redemption.
Would some of you suggest that
teen obey his parents if they forbade him to pray? Or if they told him not to speak of God in their home? Or tried to make him throw away his Bible?
I would be interested to know the pastor's opinion.