I didn't have one until I had to get a new phone last year that came with one. If it just came with a USB-C to USB-C cable and no brick, I wouldn't have had a single thing to charge the phone with. I have no USB-C port on my PC. I didn't have my PS5 yet. And I didn't even have any other USB-C using devices. Tons of devices still just have Micro-USB ports. Especially if they are cheap.

IDK about you, but I'm not getting or updating all my shit every few months. I still only have this phone, that one brick and now a PS5 and its controllers that use USB-C.