Adding on to what the other person said, the reason is because we are evolutionarily trained to avoid effort because it uses less energy, same reason people will watch a 30 second youtube short over reading a book.
Alongside that, there are some cases where I’ll be working on something and there’s a task I’m actually working on, and some small aside that I can’t be bothered with at that moment. For instance, I’m processing some data from a file and using it to display differing graphics depending on what’s in the file, but I don’t remember how to open it and read the data. If the llm can give me the code that does that, then I can stay focused on the graphics-creation code (and I most likely revisit the file opening later)