I'm not sure what you are saying she wants. If she wants regular clothes, then why doesn't she just wear regular clothes? I'm kind of lost here.
I wear regular clothes. If we're going more than 30 miles or so, I might wear some padded bike shorts under my skirt. Otherwise, I wear regular pants, shorts, or a skirt. If it's really windy, I might wear boyshort type underwear to avoid flashing people. Or I might weight down my skirt with binder clips. Most likely, I'd just wear pants that day.