For the question, how dangerous is a purple belt in brazilian jiu jitsu vs untrained individual, they should be able to defend, control, and submit nearly any untrained opponent. They should have technically efficient movements and vast experience of performing jiu jitsu techniques in live sparring situations.
How to choose a brazilian jiu jitsu gym? You should look at if the gym is competition focused, the amount of members, are they gi and/or no gi focused, …
To answer the question, how long does it take to learn jiu jitsu, it takes ~6 months to 1 year to learn jiu jitsu. This includes learning all of the basic goals, positions, and submissions.
In a survey performed at my gym, the best bjj submissions for beginners are rear naked choke, triangle, kimura, armbar, guillotine, and arm triangle choke which all can be effectively learned as part of jiu jitsu basics.
To answer the question, how to get better at jiu jitsu faster, you should focus on the basics of learning, retention, and application. To do so, you can structure your learning, train with intent or focus, build off already learned techniques, drill and perform techniques live as often as possible, and compete whenever possible.
To answer the question of how to get ready for your first bjj tournament, you should gain confidence in the training room by working on defenses, create a competition game plan and practice it both in drilling and live sparring, create a plan to deal with competition nerves, and finally, compete as frequently as possible.
How often should you train jiu jitsu in order to get better? Brazilian jiu jitsu is hard – there are days when you leave the gym feeling like a …