> The only problems I can see is that the two lines will very quickly become "pink or ponies for girls" and "dark or soldiers for boys.

Just so I'm clear, I'm entirely against this.

What I /do/ support is one set of city-scape sets that focus on internal details and the characters involved, and a second that focuses on the building and external set details.

I think that this hits a legitimate play-style difference that happens to be mostly, but isn't entirely, along gender lines.

I'm against the knee-jerk reaction that we're absolutely equal, and everyone gets the same!

We accept, routinely, that there are behavioral differences that are statistically significant (because of genetics, exposure in the womb, hormones, etc) within a gender, but there seems to be a class of people who categorically insist that there is no such trend between genders.

This isn't to say every little girl wants to play the same way, but that there are statistical biases to the genders which might be intrinsic, not societal constructs.

"Equal before the law" and "equal member of society" does not mean "the same in every way", and trying to enforce the last of these can be harmful rather than helpful.