As an Australian, outside the family I grew up in, and other software developers I know, I can’t think of anyone that I know can type at 50wpm on a physical keyboard. But then, I don’t actually know the typing abilities of many people in the range 15–40. On touch keyboards with autocorrect and autocomplete, I’ve seen various people typing well past 50wpm. Meanwhile I type 110wpm on a normal keyboard and maybe 30wpm on a touchscreen phone keyboard.
(On later reflection, I have actually thought of three that I know or used to know that can type at a decent speed. But I can think of quite a few more that can’t.)
I work in metal fabrication, and I can tell you the overwhelming majority of building and fabrication tradespeople can’t touch type, regardless of age.
(On later reflection, I have actually thought of three that I know or used to know that can type at a decent speed. But I can think of quite a few more that can’t.)