I find that in many everyday situations my smartphone just doesn’t cut it. Trying to take photos of my kids running around at dusk or indoors, for example. Or trying to take a decent portrait.
I bought an A7iii to take photos in these situations, and I’m really glad that I did. I don’t always take it out with me and there are lots of situations where my smartphone strikes the right balance between quality and convenience. But my a7iii has allowed me to capture great images that I will cherish for the rest of my life and probably wouldn’t have been able to take with my smartphone.