Figure 2 clearly shows that the rule’s max-age guidelines for men do reflect real-world preferences.The rule overestimates the perceived acceptability of men becoming involved with older women.What is the acceptable minimum age for your own (and others’) dating partners?When this question comes up in conversation, someone inevitably cites the “half your age plus seven” rule.By the time of their separation in 2011, however, Kutcher, then 33 had crossed the minimum threshold (31.5) defined by the rule. Curious outsiders are quick to judge when they can see a wide age gap between two romantic partners. In a world in which many social norms are often unspoken, the half-your-age-plus-7 rule concretely defines a boundary.
As you can see from the graph, one partner exceeded the rule’s calculated acceptable maximum age, while Ashton Kutcher’s age fell short of the socially-acceptable minimum age when they first started dating in 2003.Women’s preferred minimum partner age: Below are the data from Buunk et al.’s (2000) study on women’s minimum age preferences; the rule’s age calculations are represented by the solid line.In general, the figure shows that women are reporting minimum age preferences that the rule’s predictions.He approached the line with two other partners, but is well within the threshold in his marriage with Amal Alamuddin. The minimum rule (half-your-age-plus-seven) seems to work for men, although the maximum rule falls short, failing to reflect empirical age-related preferences.How well does the rule capture women’s preferences?