The fighting arts, in all of the different forms are enjoyable to practice and the incentive for many is moving up in whatever belt system your “art” dictates. All well and good.
Mind you in this area I have had extensive training over the past 50 years. Have tried to keep up with new “stuff” and been to many classes and reading etc. Practicing on my own. However, we need to get out and really do it to keep sharp and realize it could mean our life, and our loved ones lives as well.