There's a common misconception that certain articles of clothing are for males or females. I've been in a lot of countries (just over thirty) over the last 18 years, and I've seen a lot of different fashions for both men and women. I was surprised to learn that about a third of the men around the world wear MUGs (male unbifurcated garments).
See:
http://www.kiltmen.com/world.htm
There are a number of stores which have sprung up that sell modern kilts in the US, the UK and Germany. I'm sure France has it's share, too. In addition, several stores have been marketing skirts made for men, speficially things like the Hiking Kilt and the Macabi Skirt for Men. The Hiking kilt doesn't look anything like a kilt - it's just a skirt.
See:
http://www.backpacker.com/women/article/1,7862,1981,00.html
See:
http://www.macabiskirt.com/mens_home.php?
I have both, and do get a double-take from time to time, but they're both really comfortable.
The only reason people in the Western world do double-takes anyway is because they've never seen it before. In the 80's people were doing double-takes whenever they saw a man wearing earrings as back then it was quite unusual.
But with increasing numbers of men wearring earrings, perceptions changed. Now it's considered normal and no one gives it a second thought, particularly those who grew up with it.
The same will happen for men in heels.
By the way, I've yet to see a catalog selling earrings displayed on male models. The models are all female, and most earring stands are in the women's section of the store, yet that's where men buy their earrings. Does that make them gay because they're buying earrings marketed to women?
Of course not.
Heels may be marketed to women, but that doesn't make them exclusively the domain of women.
As it turns out, I have a narrow foot for a man, and women's shoes fit me better than men's shoes. As for the heels, I've already explained the why and the fact that after wearing them for a while, I got over my reluctance to wear them in public, and now do so all the time.
But, no, I don't do skirts and heels at the same time, nor do I wear feminine heels. But that's just me - if you're a guy and that's what you like to do, go for it. I know a lot of women who buy men's shoes because they have wide feet - does that make them lesbians?
Again, of course not.
Most people make their fashion choices based upon what most people are wearing. Some people make their fashion choices based upon what they like wearing.
My son went through a period when he was four where he liked to put the catch/throw tool for a ball game on his head with the handle pointing backwards. After we got him a ballcap, he switched to wearing ball caps backwards, instead.
Most people wear them forward, but he likes wearing them backwards.
It's just a choice. They're all just choices, and the objects aren't magically tied to one sex or the other, whether it's pants, skirts, shirts, blouses, etc. Sure, some things would look pretty silly on a man, but other things, like the right pair of heels, can actually look quite good.
There are only two fashion choices which really are tied to one sex or the other, and that's the jock strap and the bra! But if a woman wanted to wear a jock strap, I wouldn't hold it against her...