How come the Qwerty keyboard is still around?

How come the Qwerty keyboard is still around?

This is really the case of the early bird catching the worm. As far as the typewriter keyboard is concerned, first was vital! The name ‘QWERTY’ for our typewriter keyboard comes from the first six letters in the top alphabet row (the one just below the numbers). It is also called the ‘universal’ keyboard for rather obvious reasons. When Sholes built his first model in 1868, the keys were arranged alphabetically in two rows. They clashed and jammed when someone tried to type with it. But Sholes was able to figure out a way around the problem simply by rearranging the letters. The first typewriter had its letters on the end of rods called ‘type bars’. The type bar hung in a circle. If two type bars were near each other in the circle, they would tend to clash into each other when typed in succession. So, Sholes figured he had to take the most common letter pairs such as ‘TH’ and make sure their type bars hung at safe distances.
He did this using a study of letter-pair frequency prepared by educator Amos Densmore, who was Sholes’ chief financial backer. Sholes’ solutions did not eliminate the problem completely, but it was greatly reduced