Anyone who has ever watched a gender-reveal party reaction video compilation (try saying that word salad to an 18th-century farmer) knows that gender disappointment is a real thing. The most common lousy reaction is dads getting angry that their wives are having daughters and not sons. Gender technically is the dad's doing, but that won't stop sexist guys from taking it out on the mother of their children and their other daughters in front of all of their friends and family.
While some gender disappointment isn't inherently nefarious, it is when the parents of the baby are afraid to tell you the actual gender of their baby. A mother-in-law of 2 toddler boys freaked out when her DIL told her they were having a second boy. Now that the couple is having a girl, they're contemplating not telling his mom for six valid reasons. However, one has to wonder whether this deception will have long-term negative consequences.
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