70-year-old father reflects on the one thing he would have done differently: "If I were 40 again, I would never..."

A 70-year-old father, known as 'Insta Uncle', shared a poignant parenting lesson. He regrets not shielding his children from individuals who questioned their career paths and marriage prospects, thereby eroding their self-confidence. He emphasizes that children are broken by comparisons and demeaning questions, not failures, urging parents to protect their kids from such negativity.