The most important factor is to have a good instructor. A good teacher is what will bring practitioners in and keep them coming back. Location is important, but the 'quality' of the location is less important then access to the facility.
You need the martial art
yes
The first step would be to learn a martial art. Then you can take it to the next level.
You can start at whatever age you wish and that the school will take you. Many start at six years old, so as long as you can move and follow instructions, you can take your martial art.
You can start to really learn the martial art and its applications.
STEPS #1SEND OUT FLYERS TO PEOPLE YOU WANT TO BE IN THE ART CLUB #2 FIND A PLACE TO MEET #3DO ART
Its not a martial art its a training drill.
It is Majest Martial Art.
Yes, Judo is a martial art that was based on JuJitsu.
A grappling art such as aikido and judo would be a good place to start.
Learning a martial art is a good start. Getting recruited to be a spy can be the real challenge.
Mixed Martial Art (MMA)