Family structures and roles have changed significantly. Historically, extended families living together was common, and gender roles were often rigidly defined, with men typically working outside the home and women managing the household. In the 21st century, nuclear families are more prevalent, and gender roles have become more fluid, with both men and women often sharing responsibilities inside and outside the home. The concept of 'community' has also shifted from geographical proximity to online networks. Which of the following best describes a key shift in social customs from the past to the 21st century?
A) Extended families are now more common than nuclear families.