Gotta defend Kinesiology here. The formal study of the science of kinesiology, (not the esoteric "muscle testing" often inaccurately labeled "kinesiology" and for which there is no accredited degree by a reputable DOE institution,) is a valuable degree that can be developed into or used by all manner of careers, including physical therapy, massage therapy, movement education, special needs, physical training, therapy assistance, etc.
If this sister had a "worthless" B.S. degree in Kines, it's probably because she just simply is not employable for various reasons, the most likely being that she doesn't want to work normal hours like a normal person, so she can "pioneer."
Just saying...