In principle, there's nothing wrong with that.
But... Song Tan turned around and pointed at the threshing machine standing by:
"With machinery available, why should farm work still be done by hand?"
It wasn't that she looked down on her classmates, but manually threshing rice, even with thirty strong men, wouldn't cover these two acres.
So... doing some work was more like going through the motions, right? Everyone had spent money, and they should at least have a pleasant labor experience.
She pointed to the scattered grains of rice in the field:
"Not every rice stalk in this field grows at the same time. Some are too early, some too late."
Therefore, those early stalks had matured a few days early, but they hadn't fallen off and had tenaciously endured the scorching sun—by the time the other grains matured, they were already bone dry.
Now, with just a gentle shake, and a bit more force on the plastic sheet, those grains would fall off particularly smoothly.