Psychologically, what does this mean?

Is it immature to not want a formal relationship where gender norms and traditional etiquette have to matter?

By all means: lay back, skip makeup, game with me, show me something you made, stim with me, go out with me in the rain, take me to a trampoline park late at night, etc.! Wear shoes that allow us both to walk at our top speed, or bare feet! I don't care if you say "than me" instead of "than I!" Let's listen to conventionally "annoying" synthesizer sounds! And who gives a hoot if you're a man or a woman? Does it matter who holds whose hand or who is the little spoon?