I wish that cis people really just had a look into how they express gender. Like, because everyone performs gender that re-affirms theirs. Cis women wear makeup to appear 'feminine', men might put on 'masculine' smelling deodorant or perfume. Like, I wish that cis people sort of looked critically at their own expression of gender and how they might deviate from it as well. I'm sure there are men out there who like baking, and there are tradeswomen, both performing tasks that are "out of the binary norm" you know?
Like, when people ask you, how'd you always know you were trans, or me with nonbinary. It's like, how did they always know they were cis. You just... know. For some it's instant, for others it takes a while.