What is the biggest culture shock you have ever faced? - Quora

My biggest shock was returning to CONUS after more than five years (I often refer to them as the time during which I was abducted by aliens) One year in Infantry School. Thirteen months in Vietnam. Almost four years in Hawaii. The US mainland certainly changed a lot in that time (1966 to 1972) A revolution had occurred in the law rendering my education invalid. Caveat vendor replaced caveat emptor. No-fault divorce replaced the "son-of-a-bitch rule in domestic relations. The Civil Rights Act had been passed and the Race Riots had left cities looking like refugee camps. And, of course, the "Peace Movement" had turned service members into targets for every form of hate imaginable. Now that was CULTURE SHOCK!