문제 2Secondhand trading platforms, once considered a niche market for used goods, have grown into a mainstream part of consumer culture. Rising prices for new products, combined with growing awareness of environmental waste, have encouraged many shoppers to consider used items before purchasing something brand new. These platforms allow individuals to sell clothing, electronics, and furniture directly to other consumers, cutting out traditional retail markups entirely. For younger buyers especially, purchasing secondhand items has become associated with resourcefulness rather than financial necessity, ①change how such purchases are perceived socially. To ②address this problem, many platforms now ③offer buyer protection programs and detailed rating systems for sellers. As trust in these systems continues to grow, secondhand trading is ④expected to ⑤expand even further in the coming years.