Why is there a shortage of milkmen in the pasture?

1, milking in the pasture is very tiring. It's hard to get up at four o'clock in the morning and clean the cowshed. Besides milking the cows, it's also hard to clean up the feces produced by the cows.

2, you need to wear overalls, it will be very hot in summer, and you will be very tired when you are squatting or squatting for a long time. So it doesn't grow up.