Comment by JKCalhoun

I know this from the "Up" series [1] from the late Michael Apted.

Tony got his "knowledge" around "21-Up" in the series, became a London cabby by "28-Up" [2].

[1] https://en.wikipedia.org/wiki/Up_(film_series)

[2] https://youtu.be/_rQ1V7m0Kfs?t=142