Sport Pilot without a driver's license??

I'd send her to an AME for a student pilot cert Third CLass..,  While NOT required you can still do Sport Pilot with a medical..  Just let it expire if all she wants to do is sport pilot.

I would just add to that, if you decide  to get her a medical be sure you review her physical condition before she goes in for a Class III medical.  Check out Turbo Medical on the AOPA web site. With all the meds kids are given these days, you want to be careful that you don't get denied.

The idea of the drivers licence it the medical qualification and the identification. The learners permit should meet both of these requirements. Therefore, logic would say that the learners permit, that certificate that makes it leagle to operate a vehicle on the highways, should be adequate. However, we all know that the FAA does not operate on logic. This is a good question and diserves research. Submit it to your local FSDO and to the EAA government relations and get an official answer.

In the intrum she should get the sport pilot student certificate from the FSDO. She will not need the drivers licence or learners permit until she is ready to solo. Ask the FSDO that issues the student certificate also. They will probably not know the answer, but it may start the wheels rollong towards a solution.