Usability: let your mom try

The YouTube channel OSFirstTimer is dedicated to Diana, a 38-year-old woman who became a kind of “focus group” during an impromptu usability test of various operating systems released in 1984–2013. The teenager Philip, acting as a leader, allows Diana to complete 5 tasks in each operating system, and Diana comments on her difficulties in the process of their implementation.

As an example, a fresh release, with the "testing" of the ReactOS operating system: