Weak-mindedness?

I hear a lot of people telling me that they feel it is weak to go to a therapist. Why don't I hear that it's weak to go get checked for glasses? The difference is there is a lot of negative stigma associated with "being mental." (There may be a joke there somewhere -- stigma? stigmatism?) A person needs to decide what is really the weaker -- being too afraid to get help when you need it, or getting help when you need it?