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<p>But how much does social work in the US apply to the social work type of problems in China? The 4-2-1 problem* is likely much more common in China than in the US.</p>
<p>*Means 4 grandparents and 2 parents that 1 person may have to (but have difficulty being able to) support in their old age, due to the one child policy that has been around for a few decades.</p>