Before revision: Built structure On many modern commercial aircraft, due to highly restricted leg room, it's extremely difficult for the tallest individuals (predominantly male) to sit with knees directly forward, and even when managed, only serves to jab the kidneys of the person in the seat forward.
After revision: On many modern commercial aircraft, due to highly restricted leg room, it's extremely difficult for the tallest individuals (predominantly male) to sit with knees directly forward, and even when managed, only serves to jab the kidneys of the person in the seat forward.