Manhood is an accomplishment, an internal need and quest, for both cis and trans men. When we acknowledge this, the necessity and intelligibilty of questions like "But how do you know?" fades away. Seeing this will help dismantle one of the structuring cultural approaches to transgender people: mistrust.
As a therapist who works with individuals and couples, I can tell you: you have every chance of finding happiness if you're single in your 30s or 40s or beyond. College is a time to have fun, learn about yourself, and define your goals. Many women in their 20s aren't ready to pick a life partner yet.
And so it went in issue after issue of many of America's bestselling magazines through the 1940s and '50s. Rosie the Riveter may have found her way to the factory floor during World War II, but you'd never know it by looking at these publications. But in the midst of all this, a different voice was born: Gourmet.