Vietnam rules in place to prevent tobacco harm, but without visible enforcement, it's almost meaningless, according to readers.
When I asked my teachers why English has the verb "to be" or why subjects and verbs must agree, I was often dismissed. "That's English," they'd say, or worse, "That's a silly question."
The primary reason behind traffic congestion in cities is not cars or motorbikes but rather inadequate infrastructure and poor traffic organization.