Well, I have a number of work related Tee shirts given out for specific events that have the actual date on them, and one is from 1989. And we had a "crackdown" at the job I was working at in 1987 saying we had to wear slacks not blue jeans, so those slacks are just over 35 years old. And I bet some of my blue jeans date to then.
My wife had banned me from getting new clothing years ago. She did give in and let me buy 2 new pairs of jeans because I had lost weight and the ones I had were all baggy. But to be honest, I suspect I could go the rest of my life and not wear out the clothes I have. And I have NEVER been a clothes horse. I hate buying clothing, so it was always on my Christmas list. My son and DIL gave me a Kohls gift card for Christmas 2020, and I bought three shirts, that is the last clothing, with the two pairs of jeans that I have purchased in probably 5 years. When we retired, my wife had about 14 work outfits and she gave 12 of them to Goodwill.