It is true, ExXB, that the posh airlines have cruise control but it's a little known fact the poorer airlines use child labour.
In the days of the British Raj, there was the Punkah Wallah, who kept the fan going steadily at cruise speed. Now there are Cruise Wallahs.
The child crouches under the dashboard (as the flying people like to call it) and when the pilot person shouts, the child presses down on the pedal. Woe betide the child who sneezes during take off and let's the pressure up for even a second.