I've seen lots of petite women playing Thunderbirds. And I'm pretty petite myself. Jeff has seen me in person. I've said this before, but I think Thunderbirds are deceptively easy to play. The first fret gets pulled in closer to me than on my FSO Carvin.
After never owning one till last September. A Bird is as easy to play as any other bass.
Took no acclimating to it.