I think it would be a truly viable startup idea to connect app developers with "naive" people - soccer moms who simply haven't got the time to learn tech properly, 70-year-olds who've never used a smartphone, 3 year olds, etc.

Being able to get your website or app (or even good ol' desktop program!) tested by people who have <specific metric> exposure to <granular list of options> wrt. technology would be invaluable, I think.

I consider it sad that this either doesn't exist, or isn't yet a standard part of the common consciousness/culture.