People are hesitant and ashamed to consult a doctor or a psychologist in the case of mental illness due to -

Stigma

The correct answer is Option (3) → Stigma

People often avoid seeking help for mental illness because of the stigma associated with it. This includes feelings of shame, fear of judgment, social rejection, and discrimination. Stigma can prevent individuals from acknowledging their condition and consulting mental health professionals, despite needing help.