It’s such a commonly used lens that it even has its own nickname, the “Nifty Fifty”. Regardless of the brand you shoot, or the size of your sensor, a 50mm lens is one of the most versatile you can get. Whether you’re doing street photography, landscapes, portraits, or something else entirely, they can produce amazing results for very little cost.
It’s the lens Peter McKinnon recommends people buy when they ask what lens to get next. And this video he explains why. And I can’t say that I disagree. I think everybody should own a 50mm lens, no matter what other kit they have. I’ve owned one since I got my first SLR about 20 years ago, and one will forever be in my bag.