Similarly, guys who weigh 220 pounds are told from an early age that they can't be jockeys, so they do not try. But the truth is, if he contorts his body into a specific yoga position and balances on one foot atop the saddle, a middle linebacker could win the Kentucky Derby.
Paraplegics are told from an early age that they can't dunk a basketball, so they do not try. But the truth is, if a paraplegic develops enough arm strength, he can push off of the armrests of his wheelchair while shifting his weight forward and propel himself 10 feet in the air. Then he can take an alley-oop pass, jam home a tomahawk dunk, and if he really works at it, he can land right back in his wheelchair, ready to get back down the court to play defense.
It's all about close-minded people with their stereotypes and their antiquated notions of what people can and can't do.