I would like to address this to the Hoosier drivers out there. Your headlights have two purposes. The first is to afford you a field of vision in the dark. This allows you to avoid obstacles and find what you’re looking for. The second, equally important function of your headlights is to make you visible to other drivers. This allows them the opportunity to avoid crashing into you.
There are days when the second function of your headlights is critical, even though you don’t really need them for the first purpose. Foggy days, rainy days, and snowy days are fine examples. If visibility is a quarter mile or less, you should have your headlights on. As a matter of fact, I think you’re asking for trouble if you don’t have them on when visibility is less than half a mile.
Please, please, please use your headlights. You’re putting yourself and the rest of us in danger when you don’t.
Note: I imagine this is an issue in other states as well, but I’m a Hoosier driving around with other Hoosiers—many of whom evidently need to get this message.