Should everyone teach?
In some Aikido assosiations is is a reqirement for dan grades to teach others Aikido if they want to get the next dan. However, all people are different; some are better at teaching, some are worse. What if the person only teaches because he/she is after the next grade?
On your oppinion, should it be nesessary for everyone to teach Aikido in order to make their own progress?
Disclamer: These are only my speculations, I am not refering to any real people, I hope nobody's got an instructor with wrong motivation for teaching.