To ladies in locker rooms, trans females will forever appear males, males, males -- intractable instinct

 By the age of six, women have it baked into them how they will relate to natal males for  the rest of their lives -- social instinct.

Transgender males can take all the hormones and have all the procedures they want to -- women (and men) cannot see them as females -- social instinct.

Maybe if male-to-female trans begin transition at the earliest possible age and take advantage of every available option (e.g., blocking puberty) they can get-by as not-very-much-male-left.  That is how I think I would see -- instinctively.

Maybe females could tolerate that.  Only way to find out is to experiment, I guess.

Meanwhile, maybe trans angst could be eased by suggesting to them -- in only the most helpful manner -- that they don't seem to feel to terribly if everybody else stays out of the ladies room or female lockers.  Maybe they can find some equivalence in that.  ???

https://time.com/4324687/even-in-liberal-communities-transgender-bathroom-laws-worry-parents/

Becoming Nicole: The Transformation of an American Family
https://www.amazon.com/dp/0812995430/?bestFormat=true&k=becoming%20nicole%20book&ref_=nb_sb_ss_w_scx-ent-pd-bk-d_de_k0_1_11&crid=383VL6IEEPE0G&sprefix=becoming%20ni

When the Opposite Sex Isn't: Sexual Orientation in Male-to-Female Transgender People                                                       https://www.goodreads.com/book/show/6493612-when-the-opposite-sex-isn-t