✔ 最佳答案
Some don't at all and more don't spar until the student has some rank and actually knows how to use some techniques and knows how to evade attacks. There is little use having two white belts go at each other wailing. Might just join the local bar room brawl.
It is also a misconception that Mcdojo don't spar. Mcdojo often are highly tournament motivated and so point sparring is of the utmost importance. As a matter of fact I found quite the opposite is true. Mcdojo spar a lot because it is easy time for the teacher. He does not have to think why this student can't do this technique and how to fix it. Just let the students go at each other and stop the match when the students get too rough. To me that is an easy class to teach.
It is also a misconception that Aiki or jujitsu schools don't spar, unless you think sparring is only exchanging blows rather than exchanging techniques, any techniques. Fighting is not just hitting. Sparring in those arts is much more dangerous though because if your timing to roll out of a technique is off even by a little you can get something twisted and injured really easily. It is not as easy as tapping when it hurts. Many techniques use the opponents momentum and you can not just simply stop them once they get going so you have to know how to get out. It's like trying to get off a ride at an amusement park safely right now when it is in full motion.