Frequently at amusement parks there...
Frequently at amusement parks there are devices to measure the height of persons before they are permitted to ride a particular attraction. These are to ensure that children under a particular age aren't being exposed to a potentially harmful experience. An advisor for our youth program was a young woman of small stature. When she accompanied our young people to amusement parks as one of their chaperones it was typical for her to secure a special pass that permitted her to ride with them even though she didn't "measure up" to the standards at the entry gates.