並不奇怪,
是你不了解原由,
就像籃球衣在籃球場上也是很好用的服裝,
可以說是一種能表現職業熱誠與運動精神的服裝,
並不是什麼隨便的衣服,
但那是在籃球場上,
同樣的, 現在不是拓荒時代,
所以 Jeans 變成一種平常隨性的衣著,

搞不清楚狀況自然會出現穿著不適當的狀態.

Jeans are trousers traditionally made from denim, but may also be made from a variety of fabrics including cotton and corduroy. Originally work clothes, they became popular among teenagers starting in the 1950s. Historic brands include Levi's and Wrangler. Today Jeans are a very popular form of casual dress around the world and come in many styles and colors. (http://en.wikipedia.org/wiki/Jeans )