The number of cousins that Canadian children have is declining due to decreasing fertility rates, according to a kinship study. The study projected a 38% decrease in living relatives for individuals aged 65 in 2095 compared to 1950. The composition of family networks is also expected to change, with grandparents and great-grandparents living longer, but the number of cousins, nieces, and nephews declining. This decline in extended families is often overlooked in favor of research on nuclear families. While extended family networks may not be as important in Western cultures, they play a significant role in individuals’ lives in many other cultures around the world.
https://www.cbc.ca/news/canada/cousins-decline-canada-1.7103338