Some have JROTC, and some do not.
High schools offer the program
The branches of military available in Junior ROTC are the Army, Air Force, Navy, and Marine Corps. Junior ROTC programs provide high school students with the opportunity to learn about leadership, teamwork, discipline, and military skills through classroom instruction, physical training, and extracurricular activities.
If you attend a military school, you can ask about it.
Most military high schools are not obligated to the Armed Forces. The schools are usually set up under military theory such as: drilling, ROTC options, regimented scheduling, conditioning requirements, etc. The school should offer a safe, scheduled, academic atmosphere that fits with military philosophy.
Naval Junior Reserve Officer Training Corps. It is an ROTC high school programs. there are 620 NJROTC Schools around the country, and 500,000 students enrolled. google it for more information :P
I think it would be okay in a military high school.
Yes. JROTC is in high school, ROTC is in college. Technically, you do not have to take JROTC at all to take ROTC. Generally, people who take ROTC in college are joining the military afterwards. The same in not necessarily true for JROTC.
Yes, there is a Marine Junior ROTC class in Peoria, Arizona. Several high schools offer various versions of the subject.
That depends which military school it is.
Military recruiters have access to high schools and even have programs like JROTC directed at recruiting students. Recruiters can also recruit on college campuses. Many schools have tried to ban recruiters but they have failed.
JROTC was invented for high school students to see if there would be a better motivation to join the military, and if the students would want to further into the rotc in college to become officers.
There may be online high schools programs for individuals wishing to obtain their GED. I would think the local high schools would have this type of information.