If you don't question the basics, you will miss they grass is not always green, depending on environment https://www.australianplantsonline.com.au/imperata-rubra-jap... https://www.oztrees.com.au/product/austrostipa-scabra/ So yes, sometimes you need to study that before assuming that what you usually see is natural rather than shaped.

Adults should have the ability to understand abstract examples. Of course I've been outdoors and observed the grass is literally not always green.