n/a?

Downsides (parents perspective)
- degree plan de-synched: Many colleges have their degree plans layed down in semesters where certain classes are only in the fall or spring. If you start in the spring, you could be out of synch on pre-reqs and their required courses and their follow on required courses. Mitigation: see if that is the case. Your parents may be keyed in on this. I saw this in my MBA and my Civil Engineering programs.
- starting in the Spring may throw off graduation timing (see above)
- raging Mom Anxiety: you'll got Basic and AIT then they'll twist around your contract so you are put on Active Duty then send you to fight somewhere all by yourself in some random foxhole in Syria. If your family has limited exposure to contemporary military service, they don't understand how it all works, especially Moms. When you don't understand you randomly fill in blanks with what ever you think it is, based in fact, heresay, rumor, and wild ass imagination. The more blanks the more imagination. mitigation: you have to walk them through your plan. The research you've conducted and where you're trying to go. Decide your red line for heeding advice and forging ahead on your own.
- Simmering Dad concern: something will happen to my little girl. Don't know what, but something will. See above. It could be worse than Raging Mom Anxiety depending on their service experience or perception of service.
- Precious Resources: after your parents get by your safety and health, a college education is a financial outlay they may have sweated over or planned for for you since you were little. They may see enlisting as a threat to that dream. Mitigation: talk them through your plan. Reaffirm your commitment. Explain how what you are doing helps the Joint goal of earning a degree. You had talked in other posts about pursuing SMP and a Commission. Talk them through that, especially if you see AD as a career choice. It is a much better pursuit than an upaid internship somewhere over a summer. If you are going Guard, talk about the benefits available for education.
- CAPT Kevin B. mentions the MIL distraction thing...they fear that too.
Upside
- depending on your MOS and your degree program, you may return with college credit. It might just be for physical education, but it's something. Look at SPC David S. post.
- you will grow up Some. You've enlisted. You've gone off to basic and AIT. Confident, in shape, and ready to take on the world.
- you've set conditions to be a SMP cadet and since you attended AIT, you have a fall back plan in case you don't pursue a commission. You have an MOSQ. You could stay in the reserves/guard or go Active Duty after you graduate.
- you'll have an opportunity to build some savings from your ADT time and then have your Drill pay to supplement your other savings etc.
- if you really like serving in the Army, this will be a great springboard. If you don't, you finish what you started and go on about your life.
more to follow....

I did exactly that! As I enlisted as a 35F, I was able to use the AIT to get an AAS in Intelligence Operations, and come back to finish my 4 year degree on time.

You just have to have a plan and stick to it, make sure you apply for and register classes on time.

I was in this same situation. Starting a semester later than your peers is not going to be a big deal in the long run. College isn't like high school. There are people of all ages at different stages of their education.