The more you ride a bike up hills, the easier it will start to become. But if it feels like too much of a wall to ride up the hills around you, you could look into swapping out your chainrings or cassette to get lower gearing so the hills aren’t as much of a challenge.

Another valid reason to fly one is self defense. If you are bold enough to exist on rural american roads while riding a bicycle, having an american flag visibly attached to your bike can do a lot to disarm the types of people who would otherwise run you off the road.