It does not help, and you should leave the U.S. before your visa expires.
This answer is of a general nature and should not be relied upon as final, nor is it intended as legal advice. Consult with a qualified attorney before making any legal decisions. Gen Kimura, (832) 247-6932.
Interviewing officers should apply the law uniformly. There are certain parameters that a tourist visa applicant must meet, specially proving non-immmigrnt intent.
Mary Carmen R. Madrid Crost can be reached at the: Madrid Crost Law Group - (888) 466-4478; e-mail: email@example.com; skype: usvisalaw Please consult with a licensed immigration professional to provide you with a thorough legal advice. This response should not be construed to create an attorney-client relationship. Please help stop notario fraud and share this web site: www.stopnotariofraud.org.
Usually, an overstay raises red flags if another request is made to visit. In addition, overstaying and then leaving could carry with it a bar to reentry. However, a minor does not accrue unlawful presence so under your facts, the person you are referring to would not have the bar. Decisions on these are made on a case-by-case basis -- does he have ties back in his home country strong enough to ensure his return, etc. If he is friends with the interviewing officer -- perhaps but the officer could get in trouble if he used favoritism to make a decision and this is discovered. Please consult a good immigration attorney if in doubt.
An attorney-client relationship is not formed by my responses to questions on Avvo. My responses are not intended to be legal advice and must not be relied upon as legal advice.