Recently, older adults of the BuzzFeed Community shared the unique, everyday experiences from the past that younger people would find difficult to believe, and as an older Gen Z'er, I can confirm that some of these are quite surprising! Here are the common experiences from "back in the day" that are now obsolete, according to people who lived them: 1. "I remember my family doctor would come to the house for house calls, and he was always smoking — whether it was in the exam room or in your house." 2. "I remember not having a Social Security number until it was time to work. Children were not born having a Social Security number. Also, I started working at the age of 10, cleaning offices and bagging groceries at the local supermarket. It was normal back then." — glitterysun821 3. "Banks used to give gifts — like maybe a toaster — for opening an account. Also, their hours were 10–2." — martysinhawaii 4. "I lived on an Air Force base in the 1950s, located just north of San Francisco.…