At one time ‘writing tools’ meant pen and paper. Then, for a while, it meant a typewriter. But now it means computer software. The problem for me is that I like tinkering with software. With a really good piece of writer’s software I get immersed in setting it up, playing with its features, thinking what could be done to improve the tool, and so on.
In short, it distracts me from getting any writing done. A typewriter isn’t complicated enough to do that.