The threat of imminent fiery death is going to have a number of global socioeconomic effects, almost all of which will just wreak havoc with your morning commute. You're gonna have dragons that ignite cars from above, and dragons that dwell deep in tunnels (and also ignite cars), and small dragons that lurk in our back seats and distract us with riddles. And even if you avoid murder by one of those, the nature of traffic means it only takes one or two smoking heaps on the freeway to slow down everyone's day
"And on the 401, we've got Bat'lythur, Flayer of Souls, causing a lot of congestion."
The implications of this are deeper than you might first suspect. Not only would dragons make getting to work a challenge, but they'd also make getting home a challenge. In a world filled with dragons, the two will probably become one and the same.
And not always in the way you might hope.