Re: How effective is aikido in self defense?
In my opinion, the martial art is only as effective as the martial artist is.
Aikido with give you conflict resolution skills, multi-attacker skills, movement skills, and joint locking skills. It will teach you how to move out of the way of a punch and to get out of holds and grabs.
Again, all these things are effective depending on the individual's skill and the situation. In a knife fight give me some kali sticks.
The training journey is long but what you learn will help.