Re: The purpose of Aikido?
If you learn from someone whose own expectations are modest then chances are your expectations will be modest.
If you learn from someone who thinks it takes decades to learn what you want to know then it will take you decades to learn.
When someone is disappointed because they think or are told their expectations are not realistic, don't encourage them to lower their expectations but encourage them to work harder toward their expectations so they can see how far and how fast they can go.
Don't let other people's self imposed limitations limit you.