The common trait among the three words is that they are all banned by the Education Department of the New York City.
Modern mayors not only have a good idea about how much coca-cola is bad for your health: 12 ounces okay, 16 criminal (mayor of NYC banned selling large beverage city-wide); they also assure you that beef is better than chicken (mayors of Boston and Chicago ordered Chick-fil-A to be kicked out of city limit because of its owner's donation to religious family value groups).
The list of inappropriate words was assembled by the Education Department to be banned from textbooks and exams, because they might stir controversy among students. Other words include Halloween, poverty, divorce, disease, etc. Also a detailed guideline spelled out 50 topics that should be avoided, for example: ".. shouldn't include items that are potentially disrespectful to authority or authority figures or give human characteristics to animals or inanimate objects.
A spokesperson Robert Pondiscio stated that the intent is to avoid giving offense or disadvantage by privileging prior knowledge.
Across the Continent in the great state of California, schoolers gained rights to decide what gender they want to be on the day in school, when using restroom, etc., regardless what gender they put in the registration forms. Previous rules allow students to choose their gender, but require them to pre-register with the school. The new rules eliminated the inconvenience to update school records.