Although it's great to have thriving, mixed sections within a club, does it really matter to the club if no women or juniors want to be members at the going rate but the men can fill the gaps.?
From a business perspective, the club want to maximise income.
If the, say, 50 women who take up the half price offer are replaced by men paying full price..isn't that, financially, better for the club?
If the product is good enough, appealing enough and available enough then people will use it.
Does it matter if they're men or women..?