Legislatures in more states than one might expect are considering or have considered bills related to autonomous vehicles. Nevada and California are the most widely reported, but Florida, Arizona, New Hampshire and New Jersey, to name just a few, are also getting into the autonomous vehicle game, according to Stanford.

But how close are we to human-free driving? According to the following infographic from Autoinsurance.us, we're about five years away from Google releasing its first fleet of fully autonomous Toyota Prius hybrids. And by the year 2040, self-driving cars will account for 75 percent of vehicles on our roadways. Currently, however, the majority of people aren't quite ready for such technology -- check out the following to learn why.