In elementary school, children get the talk about unwanted touching. In college, they learn about boundaries and what constitutes assault.

But in between, sex education in schools is often an antiseptic regurgitation of the science of reproduction mixed with healthy doses of the need for protection and, increasingly, abstinence.

In the past few weeks, allegations have swirled against Supreme Court nominee Brett Kavanaugh -- accusations that date back more than three decades to the time he was in high school. (He has emphatically denied the claims.)

This moment in politics has spurred many different conversations. One of them: how schools teach students about consent and sexual assault.

A study conducted by the Center for American Progress, a nonpartisan policy institute, found that the majority of America's public school students don't know how to identify healthy and unhealthy relationship behaviors.

As it is, only 24 states and the District of Columbia mandate sex educationin public schools, the study found. Of those, only eight states require mention of consent or sexual assault, it said: California, Hawaii, New Jersey, North Carolina, Oregon, Rhode Island, Vermont and West Virginia. (The District of Columbia does, too.) Read more via CNN