Errr, not in the rural area I grew up in. Gravel driveways are super common, gravel roads not so much.
To give some specifics: I only remember driving down an actual gravel road (like, for public use) a single time. In 18 years. Even my friends who lived >30min from the nearest "city" (~10k population) had paved roads all the way.
But that is just my own experience. Areas with a different climate or geography might be a totally different story. My hometown area is relatively flat, lots of farmland, and rarely gets severe winter weather.