The OECD study @dredmorbius linked to is terrifying:
26% cannot use computers
14% can do stuff like “Delete this email message.”
29% can do stuff like “Find all emails from John Smith.”
26% can do stuff like “You want to find a sustainability-related document that was sent to you by John Smith in October last year.”
5% can do stuff like “You want to know what percentage of the emails sent by John Smith last month were about sustainability.”
https://www.nngroup.com/articles/computer-skill-levels/
I live in a bubble. I do.