"Mowing less frequently [than 3 weeks] is practical," Not in all areas. Some grasses grow much more quickly, especially in warmer areas. Many areas require a lower mow to inhibit mosquito reproduction. Every 2 weeks tends to work well for my lawn.
I’m curious if this is due more to climate or species of grass in an area.
I do not mow in in the winter months, at all.
Seasonal.