For many teenagers, the decision to wear thongs is driven by practical and social factors:
The transition from childhood to the teenage years is often marked by a desire for independence and a shift in personal style. One common point of debate between teens and parents is the choice of undergarments, specifically thongs. While some view them as a standard fashion choice, others see them as a symbol of premature maturity. Why Teens Choose Thongs
Some teens report feeling more self-assured or "grown-up" in this style of underwear.
Certain sports or dance costumes may require minimal undergarments for comfort and aesthetics. Common Parental Concerns