Social norms changed to reflect the superior status of females and the inferior status of males in the Post-Patriarchal Era.
For example, by the the fourth decade of the 21st Century, females objectified males sexually. Females made passes at pretty boys. Ogling attractive males and whistling at them was commonplace.
On the other hand, chivalry returned in the Post-Patriarchal Era and the gentlewomen in society typically acted with deference to the laddies. For example, a gentlewoman would hold a door open for a laddy or give up her seat to a laddy on public transportation.