I mean that if somebody is wearing a skirt, has breasts, and tells you they are a trans man...then they're a trans man. Not everyone is a candidate for top surgery, and men are allowed to wear skirts ;).
I'm talking about when trans people are expected to present as almost a caricature of their actual gender to be accepted. I have a trans woman friend who has to wear a skirt and makeup to every medical appointment or she will be asked if she's still transitioning! MAKEUP. To medical appointments.
Men can wear skirts and makeup. Women can wear pants and no makeup. Trans or cis alike.