Final answer:
A new concern that emerged in the twentieth century as women dominated teaching was the fear that young men would become "soft" and lack masculine role models.
Step-by-step explanation:
A new concern that arose as women came to dominate teaching and the gender tables turned in the twentieth century was the fear of young men becoming "soft" and the lack of masculine role models. This concern was fueled by the changing societal roles of women, as they were gaining more rights and agitating for social reforms such as the eradication of saloons and the closure of boxing rings and gambling houses. The perceived decline of masculinity in the face of growing female power led to anxieties about the future of men in a battle of the sexes.