Re: Aikido survivors
There are so many reasons; likely as many as there are people who quit. Many talented people I know who have quit have done so due to issues such as life changes (family, work, etc.), and some just lost interest. Some people who find that it comes too easy for them are not as vested (generalization here) as those who struggle. Certainly see a lot of people quit shortly after shodan, and fewer and fewer quitting as they progress up the ladder from there.
Good topic; hope it generates more responses.