Boulshired well, quite. Teachers won't, generally, be comfortable with this because we aren't utterly bloody stupid, & many of us are parents ourselves.
Am I giving up my Easter holiday to fret about what is happening in a hotel room containing four 14 year olds, where one of them is of the opposite sex to the other three, & I'm in loco parentis, & the parents of three of the children have NO idea that the fourth is of the opposite sex, & would categorically not have agreed to this if they did know?
No, I'm damn well not. It's a huge failure in safeguarding, it's a dereliction of my duty to keep ALL of those young people as safe as I can, it's a betrayal of the trust those parents have in me (& I trust other teachers to take MY kids on residentials & keep them safe).
I will not ever do this.
Which means, of course, that resis won't happen. Or they'll be led by significantly less experienced colleagues who are too woke to think 'erm, hang on a minute...'.
Or, y'know, we could just maintain single sex spaces - & provide single occupancy for students who wouldn't be happy in sexed dormitory provision.