Rest is not idleness, and to lie sometimes on the grass under trees on a summer's day, listening to the murmur of the water, or watching the clouds float across the sky, is by no means a waste of time. ↗
You can meet a young person who goes to school and is really enthusiastic, but if a sufficiently strong personality convinces them that this is a waste of time, that person might flunk out. ↗
I grew up in conservative rural Kansas in the 1950s when it was expected that girls would not have a life outside the home, so educating them was a waste of time. ↗