Self-doubt

Culturally speaking, women's bodily features tend to be divided into two categories. There are the concealed parts, which are treated as objects of titillation, and the revealed parts, which are treated as objects of scrutiny and self-doubt. When the female armpit began its shift from concealed to revealed, marketers rushed in to speed the transition. Self-doubt, after all, is a major sales opportunity.

—Laura Wattenberg, http://www.babynamewizard.com/archives/2018/4/the-surprising-tale-of-the-name-milady