Yes, but you'll need a doctor's letter.
You can join JROTC.
No, not at all.
Yes, it is still possible to join the ROTC. Before doing so, you need to think about your child and who will be caring for them.
Yes.
College ROTC commissions Reserve, National Guard, and Active Duty officers. You may choose which one you want.
Yes
no you will always (out of rotc) start in any branch as a 2nd lieutenant
Yes it either moticates them to join the military, go to college and join the rotc, or just graduate.
If you have had a cranium surgery, you can join the army if the surgery did not affect your mental or physical abilities.
You'll need a haircut when you first join.
Jr. ROTC is not a requirement for joining any military branch. It can be a benefit to you both personally and professionally (although I would avoid sharing this information in Boot Camp if you do join).
Yes just because you have a child this does not disqualify you