Variable font width, height, and kerning is more difficult and slower to read. It's fine if you're reading a short childrens book at out loud, but if you're reading an entire novel silently formatted like that, it would become exhausting quickly.
Variable font width, height, and kerning is more difficult and slower to read. It's fine if you're reading a short childrens book at out loud, but if you're reading an entire novel silently formatted like that, it would become exhausting quickly.