Mike Taylor wrote:
[...] I have turned some people away because they were seeking training for the wrong reasons, to cause harm to others, and simply didn't need to be made more dangerous.[...]
Exactly what I think. There are some people who just don't deserve
to practice Aikido. I mean it would be great to have a perfect world in which all of us practiced Aikido, but this is far away for now. Some people will just use it to harm others (I mean not to defend themselves of course). I think this are the only ones who shouldn't practice. About your height, weight, age, gender, length of your toe nails; that doesn't matter.