As 2F/2F says, there a very limited minimum set of skills needed to work in photography. Artists out of other fields take up photography all the time, often with results humbling the technique-enamoured amateur.
So, once you got the basics down pat, it's just a question about wanting to do art. There are creative techniques, too. Looking, hearing, feeling, experiencing artworks with the expectation of a synesthetic experience is one. Project work is another. This is, sadly, less often taught than technical skills. I suspect it's because no equipment sales come out of it