structural:reformatting, quality:corruption, linguistic:paraphrasing, stylistic:tone, linguistic:translation
"Four-two-one" problem

As the first generation of legally enforced only-children came of age to become parents themselves, one adult child was left with having to provide support for his or her two parents and four grandparents. Called the "4-2-1 Problem", this leaves the older generations with increased chances of dependency on retirement funds or charity in order to receive support. If not for personal savings, pensions or state welfare, most senior citizens would be left entirely dependent upon their very small family or neighbours for assistance. If for any reason, the single child is unable to care for their older adult relatives, the oldest generations would face a lack of resources and necessities. In response to such an issue, by 2007, all provinces in the nation except Henan had adopted a new policy allowing couples to have two children if both parents were only children themselves; Henan followed in 2011.