In an exceptionally harsh and sparsely populated environment such as the Gobi, a child is more dependent on its mother or other caretakers than children growing up in a benign climate surrounded by people.
The temperature drops so low at night that, even under blankets, children cannot generate enough warmth to survive. They must sleep next to larger adults or at least clumped together with several other children. During the day, the child must be carefully monitored with frequent rubbing of the hands, feet, and exposed parts of the body to prevent frostbite. In a milder climate, a urine-soaked child might develop painful skin irritations with the potential for longer-term problems, but in the Gobi, the urine can quickly freeze and threaten the life of the child immediately. Even a simple fall outside can quickly lead to death if the child is too slow to get up again. In the fall and spring dust storms, a child can become lost within only a few feet of the ger and gradually be buried and suffocated in the dust.
Children typically nurse for several years, and supplement this with the rich dairy products available in the fall, but when winter sets in, the child must eat meat or very hard forms of dried and cured dairy products. To survive on the meat and harsh foods of the Gobi, the child must have the food partially chewed by an adult or much larger child in order to swallow and digest it.