It takes dedication to learn a martial art. That dedication will eventually lead one to be able to teach.
in most martial arts it takes about 4-6 years to become a black belt
To learn one martial art is impossible. Learning in martial arts does not end.
Don't get sucked into the style wars. Study the martial arts for your own reasons, not for what others think. You need to find the teacher and style that works for you, which is not necessarily the one for your neighbor or your friend.
There is no 'ultimate' form. Martial arts were developed in many places over great stretches of time. They take many forms.
depends on the type of martial arts
Take a martial arts class.
You need to pick a martial art and study it for many years. A true master will study for 30 to 40 years before being considered a master.
Most likely Taekwondo or Karate, these martial arts have many families involved and most studios of these take both children and adults as students, compared to martial art styles like BJJ that may not.
Good teaching skills, a lot of dedication and time spent training. It is very difficult to earn a living as a martial arts instructor or competitor.
Becoming a samurai can take many years, as long as it takes to learn the martial arts, archery, fencing and many other skills.
The first step would be to learn a martial art. Then you can take it to the next level.
Tamerlan Kuzgov took useless elements of various martial arts, elements that do not work in his personal experience and invented the mixed martial art. Its code name is Hardfight. The worst approach to create and use a martial art means a way of making a useless or ineffective martial art. Because his approach is to take only useless, ineffective elements from various martial arts to create and use a martial art, then Hardfight is the worst approach ever created. It's a truth because you can't come up with a worse approach than that.