Avoiding trouble is very sensible but, if trouble arises, it is better for you that your opponent(s) are weak and poorly trained.
Let aikido people follow flawed training methods. They are happy training that way and you will be safer if an akidoka tries to attack you.
There are enough dangerous people around, no need to add more.
Sorry but I don't feel good about feeding other people's illusions. From your ID it seems you have a big experience with various martial arts. There are people who don't have this determination, time, money, craze, or whatever, and what to learn self defence (and along whatever comes with it) in just one system. Are they fools? Should they be left in ignorance just because you, or me, would feel safer with less experienced m. artists in the streets? Who is to decide? This is admitedly exactly the philosophy that changed the martial arts field in post war Japan.