Race is not mentioned in the article. Ironically, you are doing the very thing, here, which you claim spoils it.
The mention of culture is not out of place in the article, as the marshmallow test (which features quite prominently in it, including in its actual title) does have different outcomes in different cultures, and, in addition, it is hardly controversial to suppose that the way children are brought up is an important factor in establishing and maintaining a culture's cohesion.
The mention of culture is not out of place in the article, as the marshmallow test (which features quite prominently in it, including in its actual title) does have different outcomes in different cultures, and, in addition, it is hardly controversial to suppose that the way children are brought up is an important factor in establishing and maintaining a culture's cohesion.