Are ROTC programs open to non traditionally aged students?

I think there is an age limit for ROTC - call a DET at a university (ANY detachment would do) and ask one of the folks there.

I think you have to be able to be commissioned by your 27th birthday. Like pooh stated call the det at your local university since they all have pretty much the same rules.

From the Air Force ROTC site's FAQs (this is for scholarship applicants):

11. Am I eligible?

To be eligible for a scholarship interview for an Air Force ROTC Scholarship, you must:

Become a United States citizen prior to the date you activate the scholarship.
Graduate from a high school or hold an equivalent certificate by Spring of 2010.
Be at least 17 years old on the date you activate the scholarship.
Be less than 31 years old as of December 31 of the year you will commission .
Be less than 27 years old as of June 30, 2010 (i.e., have a birth date of July 1, 1983, or later). If you have prior active-duty military service, write or call the High School Scholarship Program about extending the age limit.
Not have enrolled fulltime in a college or university prior to the Fall 2010 academic term (except for joint high school/college programs).
You must mail in your official high school transcript with a raised seal or signature from the guidance counselor.
You must mail in your completed personal statement, résumé, and extracurricular activity (bubble) sheet postmarked no later than January 9, 2010.
If you are a single parent, contact the nearest Air Force ROTC admissions representative to obtain a single parent care plan package.
You must complete the Physical Fitness Assessment (PFA ) and mail or fax the PFA Letter of Certification to our headquarters prior to January 9, 2010.
You must take and receive the results of either the ACT or the SAT1. No later than January 9, 2010, you must have your ACT or SAT1 (either one or both) scores sent to Air Force ROTC. The Air Force ROTC test code is 0548 and our address is HQ AFROTC/RRUC, 551 E. Maxwell Blvd., Maxwell AFB, AL 36112-5917. Acceptable forms of the scores are those results received from the testing agency or off the agency websites, which can be faxed to us at 334-953-4384 or 334-953-7769. Scores posted on your official transcript are also acceptable. You can see your high school counselor or write directly to the testing agency for test dates and/or to order a score report. Their website addresses are: SAT and ACT.

Acceptance to ROTC does NOT = scholarship. You can do ROTC without the AF paying for your school and earn a commission that way (in certain career fields - I do not know if RN is one of them) - and I can't find a bloody thing about that on the Air University website.

So yes - call a DET. I tried.