A good take. Here’s a quote:
While Yiayia’s rules of modesty might seem arbitrary, change some from one culture to another, and even change some over time, what mattered was that the rules were clear. This is essential because young women naturally compete with one another for sexual attention, and knowing the exact location of the line between good girl and slut is required in order for them to effectively compete.
In a sense this isn’t all that different than auto racing. While NASCAR, IndyCar, Formula 1, etc. have different rules about what is permitted, what matters is that the rules are understood. In order to compete effectively you have to go right up to the line but not over it. But with modesty there are no longer any clear rules. Each woman finds herself trying to go up to what appears to be the line based on what the other women around her are doing. This has been going on for several decades, and not surprisingly it has resulted in a continuous drift of what is deemed acceptable.