Kali or Debian
OK, so I am taking Cyber security classes at my college, and I am getting myself into pen testing and stuff of that sort (but still completely a newbie). I am deciding between what OS I want for my laptop < Debian or Kali >. I know Kali is used mostly for security field type work, but I would also like to be able to practice on my Developing skills to. would kali os be a good choice for me or would debian be a better choice for security/development? I have met a few security professionals who keep telling me that real professionals use whatever os they want and just build their own tools?