Then there’s the problem of binaries. Most forms still use two options for gender: male or female. But that label doesn’t work for a lot of people—more than you might think, if you don’t happen to know anyone who is trans or nonbinary. According to a 2016 report from the Williams Institute at the UCLA School of Law, which analyzed both federal and state-level data from 2014, about 1.4 million American adults now identify as transgender—around 0.6 percent of the population.

