Definition & Meaning of "an old man is twice a child"

What is the origin of the proverb "an old man is twice a child" and when to use it?

The proverb "an old man is twice a child" has its origins in ancient works, notably by Sophocles, and has been referenced in various cultures and literatures over time, including in Shakespeare's 'Hamlet' (Act 2, Scene 2). The saying serves as a reminder of the physical and mental changes that can occur with aging and emphasizes the importance of showing respect, compassion, and patience toward older individuals. While the proverb highlights the dependency of the elderly, it also calls for acknowledging their wisdom and experience, recognizing the balance of care needed in both childhood and old age.