>>11936413I asked my dentist this once.
Back in the day, people tended to eat much more fibrous, tough foods. Food you would need to chew, chew, chew. As a result of this frequent chewing, your jaw would lengthen, making room for the wisdom tooth. Its the opposite of how people who lose their teeth and don't chew have recessed jaws. When you use or don't use your muscles and bones, they weaken, like an astronauts after they've been in space too long.