A more thorough explanation:

Definition: A layperson is someone who is not a professional in a particular field or subject. They have little or no specialized knowledge or training in that area.

Examples:

• A layperson trying to fix their car without any mechanical knowledge or experience.
• A layperson attempting to diagnose their own medical condition without consulting a doctor.
• A layperson serving on a jury without any legal training or expertise.

These examples illustrate how a layperson lacks the necessary knowledge or training to perform a task or make a decision in a specific field. They may rely on their own limited understanding or common sense, which may not always be accurate or effective.