Why a female can t use male outfit ?

hi
Why i can t use the male twilight coven outfit on my female witch ?

i m agree to pay the male outfit, but i can t buy it because i m a female ???? i must buy the female version, but i dislike to wear a skirt, i want to wear trousers, ....

I think if nexon allow it, nexon will sell more outfit so more NX so earn more money.

it s a win win deal for all.

thx
best regards