I repeat: Unless your PERMANENT LEGAL ADDRESS is being switched to FL, you do not need to get a FL driver's license. If you are relocating to FL, permanently, and switching your legal address (likely your parents' address if you're still in uni) to FL, than yes, she would need to get a FL driver's license, license plates, insurance, etc.
If you go to school out-of-state, being on the CP, is no different. You just have a secondary address.
I understand this might be confusing, but my legal address is still my mother's, even though I have never actually lived there. She moved 2 weeks before I graduated high school, and my legal address changed then. Since then, I have lived in WV for 4.5 years at WVU, FL for the CP, and Germany for a year, but I have never legally had to switch everything over.
I move back to FL this Friday, this will be a permanent, legal move. And, therefore, I should establish FL residency within 6 months.
I am absolutely certain on this, so I hope this will clear up any confusion for you guys
I've moved a lot...almost 20 times in the past 6.5 years, so I've definitely looked into it all...