It's sometimes difficult to exactly time the onset of a particular item, and thus to unambiguously establish whether it was a "cause" or a "result" (i.e., "symptom"). Below my tentative list of "factors":
1. The Pill
2. Urbanization/mobility and less community policing
3. The demographic bulge
4. Countercultural ideology
5. Economic optimism / prosperity
6. Weakening of traditional institutions
7. Vietnam War pressures
8. Mass media + music culture
9. Shifts in parental authority
10. Peer group norm diffusion
11. Automobile culture / mobility
12. Decline of early marriage norms
13. Growth of co ed environments
14. Changing gender roles (including delayed marriage and longer female workforce participation; conversely: increasing female college enrollment)
15. Secularization trends
16. Legal changes (e.g., privacy, contraception access)
17. Postwar psychological shifts (optimism, individualism)
18. Anti establishment political climate
19. Popularization of therapy / self expression
20. Influence of European avant garde ideas
21. Rise of youth consumer culture
22. Technological changes (cars, phones, records)
23. Expansion of leisure time
24. Geographic mobility / interstate migration
Regards,
Also women working in the factories during WWII, was a game-changer as well.
That’s a good list.
I’d include the one from #163
“Social isolation, perhaps. Moving away from the larger family units (grandparents, cousins, etc)”
I'd add what those factors changed with freedom and responsibility and how men and women were affected by that freedom and responsibility and the ongoing choices made by men and women.
I'd also add the insidious pressure on individuals, families, and societies as we moved from rights to debt and tax slavery in the early 1900s, as the world has been steadily shifting from kingdoms to countries to "economic systems". This includes the advent and rise of korporations and how they operate in relation to individuals, families, societies, governments, and cultures.