I live in Yeonsu-gu, Incheon, where has many huge trees and long, wide roads, so most of Yeonsu-gu denizens, regardless of sex or age, ride their bicycles to reduce moving time or to exercise. Teenagers and kids usually ride their bikes when they go to school or come home from school. Old ladies and men usually ride their bikes as sporting equipments or means of transportation. Riding a bike can be one way to live eco-friendly(greenly) because bike doesn't pollute the air. I recommend you to ride your bike for your healthy body and environment.