An AI is like delegating it to the junior programmer you don't have. You spend 5 minutes writing the spec rather than an hour coding.
It's usually something you could do yourself, and just can't get motivated to type out the code in the moment.
I use the tools, but I'm under no delusions that I'm not just being lazy. I could just do it myself, and in some cases it would take roughly the same amount of time, but I can scroll TikTok while it dutifully churns out code.