Which of the following is a common misconception about mental illness?

Mental illness being perceived as a sign of weakness or a character flaw is a common misconception that can perpetuate stigma and discourage individuals from seeking help. This belief inaccurately suggests that people with mental health conditions can simply "snap out of it" or improve their situation through willpower alone.

In reality, mental illnesses are complex conditions influenced by a variety of factors, including biological, psychological, and environmental aspects. They are not a reflection of the person's character or will. Recognizing that mental illness is a legitimate health condition deserving of treatment is crucial in fostering understanding and support for those affected.

The other options highlight misconceptions around mental illness as well but do not directly address the societal and personal stigma that characterizes option C. For instance, some might argue that mental illness is purely genetic, or that it arises solely from behavior, but these views do not carry the same weight of stigma as the misconception of weakness. Similarly, the belief that mental illness doesn’t affect children overlooks the fact that various mental health issues can manifest early in life, affecting their development and well-being.