> For cultural customs, I am not sure which country to take. For US and UK (which dominate the statistics on stuff like this due to language and other factors), women spend significantly more.

You're trying to make a biological preference claim out of what is customary in the Western European cultures.

Sometimes it's better to say that "we don't know", because that is exactly it.

> This is misleading.

No... Your original was misleading, I just forced you to correct yourself.