That's usually my job!
What a shame that it's come to you looking around for another school
.
Don't know if you've already mentioned this, but what about getting a petition from the parents?
Who is on the board? Would you be able to approach your priest?
Maybe if enough parents write letters to the board of govenors they would take the issue more seriously?
I think you might need to write to the board again and again and again. Could you put forward the argument that if the uniform policy were changed to incorporate girls having the option of wearing trousers, that it could be stipulated in the prospectus that leggings are not appropriate, and that only school uniform trousers would be allowed?
Maybe write something like..
"I am aware of the board's bullshit concerns that allowing girls to wear trousers might result in a lowering standard of smartness. I have given this matter much thought, and think that were the rules to be changed, this could be overcome by stipulating in the prospectus and school uniform policy that girls are not permitted to wear leggings or jeans, and that school trousers for both male and female pupils must be of equal smartness and of a formal, not casual style.
You could also add that you have done some research with regards to this, and have found that several supermarkets sell high quality girls' trousers specifically intended for school uniform, which are of the same standard of smartness to the ones they make for boys...etc...etc...etc.
You might even mention that when you see girls from other schools with a non sexist less traditional uniform policy, you are hard pushed to find any girls who looked less smart on the basis of their school trousers alone.
Play them at their own game, Fish!
If I were you, I'd carry on beavering away at this, remaining calm, pretending that you respect their concerns, addressing them as if they are serious and valid points, but always counter arguing with a sound and sensible argument.
I would finish with something along the lines of..now that I have understood and addressed the boards concerns and tried to demonstrate ways of overcoming any potential pit falls that changing the uniform policy might have resulted in, I kindly ask the board to reconsider its stance on the issue.
Yours respectfully....