As ridiculous as the name is (they really could have thought of something better), I think the idea is great for one reason, and one only.
My daughter is one handed because of a form of cerebral palsy she has. her right hand is what we call her 'helping hand'. It floats around, involuntary movement called chorea. It will never be a dominant hand. Because of this being one handed, she cannot wear jeans. If she goes to school and has to go to the bathroom she cannot do them back up alone. In grade 7, that does not work very well. she cannot very well be running through the halls with her pants open asking someone to help.
She lives in yoga pants. SHe has every color under the sun. they can easily be pulled up or down without worry. So this is something she could wear, work with and still looks like what everyone else wears.