Without any acknowledgement of cultural context, which has been cited as necessary for understanding the concept at the time.
"The Cage" and "Where No Man Has Gone Before" has demonstrated that pants and tunics are available to female personnel. Since there is any real world parallels to military uniforms, there are likely duty uniforms as well as dress and utilities, but most female officers seen are on the Bridge or in administrative or support functions (i.e. Sickbay, Bridge, Starbase adjutant).
Nope, show me in TOS. Not the pre TOS rejected pilot and uniforms not used in TOS. Anyhow, my big issue was TOS it was silly, but it was the 60's so I ignore it. But the kelvin movies went that route and it was just stupid( sexy, but stupid)