That can’t be true. I believe what you mean to say is you have no cameras that can produce RAW files. All cameras shoot in “raw” in the sense that the sensor receives all sorts of information - far more than is rendered into the final file output. A camera that saves only Jpeg files is making a decision as to how to process that information and render the final image. In particular, cheap cameras (the kind that can only save jpeg), typically make all sorts of artificial decisions, picking a color palette, smoothing out chroma noise, deciding on a white balance point, etc.