There are people out there who don't know how to type properly, though I'm not sure if they'd be reading much HN. Most Americans under 40 would have learned touch typing in grade school.
Yeah, I learnt touch typing as a teenager with no instruction and as far as I'm aware most of my friends also did. My mum used to type with one finger at that time but I think by now even she would struggle to find a use for this tool
