Can i buy a car without a license?

i live in pa and am looking to buy a car for my gf and i. i am over 18 but dont have a license and she is under 18 for now but has her license. we need a car now or else we would wait.
also...i dont have any credit at the moment so do you think i would even be approved for a car?
any info would help
thanks!
Update: p.s. im mostly worried about the not having credit part of it....
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