She tired riding Dad's bike years ago when I had a GSX1100G Suzuki. Daughter was 5'2'' and 105 pounds. She could figure out the clutch and general riding skills, but that thing was just too much weight for her, and down it went when she tried to do a slow speed turn. The Triumph was a lot of bike for her too, but she managed. Alsways was a little scared of it though. Tall seat (for her) plus it's weight was just too much. Anyway, she's living in downtown inner city now, and just can't have a bike due to storage problems: just no place to put it.
It's a dilemma that so many younger people face these days. They love the minimalist lifestyle, but apartments and condos often have no place to park a bike except out on the street. And though it's possible, just about any bike would become a rusted mess soon enough due to the weather. Lotta money invested to take that chance.