Because it eliminates the need to look at the keyboard, touch typing is one of the most important and useful skills blind and visually impaired children can learn. But touch typing for the blind is by no means a new phenomenon.
When the typewriter and touch typing method were first introduced in the late 1800s, it was clear that the technology would be of great service in enabling visually impaired children to write. Schools provided instruction so individuals could learn to type and eventually the commercial typewriter became more widely used than the Braille Writer.
It even opened up new career opportunities as blind people began working as typists and transcribers.