I mean, I'm good at ridiculous platforming, but pretty bad at navigation without a map, so that's the only reason why. I also never beat Kirby and the Amazing Mirror because of this, and in general dislike exploration-based games without decent maps.
Also, for example, I tried to get down to the part of the water area where the upgrade was, but there was a part that seemed impossible with what I had. If it turned out there was a way to get through, however, I would probably never progress without a definitive way of knowing that was my only option left. So yeah, ideally I would just map it out, but I was lazy. I might try it again when I have some time.