Many things would be the same. People still drive cars, eat the same sort of food, watch a little TV (many more channels), play golf, hunt, fish, go camping and farm. Airplanes are still more or less the same. We made it to the moon, and then quit thinking about space. Some people still smoke cigarettes, but not in restaurants. Politicians still lie about each other and care more about discrediting the other side than doing anything meaningful. Tony Bennett is still alive. Johnny Cash is dead.
Many, many things would be new or different. Telephones have buttons, not a dial. Computers are everywhere and typewriters are rarely seen. Banking is done at machines on the sidewalk or over the phone. All of the good TV shows have been replaced with softcore porn. Mom died (after 30 years as a widow). My sister got a couple of graduate degrees. She got married and then divorced. I grew up and moved to Texas, where I neither farm nor sell cars, but do camp and fish. Nobody listens to Vic Damone. Vietnam is over, but we have new wars on TV, fought with technology and embedded reporters. Things cost a whole lot more than they used to.
As Townes Van Zandt once said, time flies like an arrow and fruit flies like a banana.