>>6749438>They are, however, steadily releasing Disney and 'girl theme' castles fairly regularly.That's because girls like buildings over vehicles. I'll tell you all a completely anecdotal story now.
When I used to work with elementary kids, there was a clear split in terms of how the boys and girls played with Legos. Most of the boys would spend the entire time building vehicles and telling each other ideas for how the various vehicles' weapons might destroy each other; there was maybe one boy per class that was more interested in making a fortified base (and come to think of it, those bases were often incorporated into the group play story by the other boys, so they probably appreciated having the base around). The girls, meanwhile, would immediately begin building structures, usually stables for the horses. Again, maybe one girl in 15 would make something that wasn't a grounded structure. All that stuff we've read from the minidoll research about how boys view all the minifigs as pawns in a story they're creating while the girls pick a single minifig (or a horse) and play as themselves in that body rang true as well.
Personally I liked making bases over vehicles as a kid, but from what I've seen with groups of boys, that's the minority preference. Maybe it's because I was just bad at building, because now that I can moc I love making vehicles.
So anyway, you've got all the boy Legos in the boy Lego aisle and 80% of them are vehicles because that's what the majority of boys seem to want. Meanwhile over in the pink and purple aisle, most of the minidoll sets are structures for a reason. Besides the Pop Star Tour Bus and the plane, I can't think of any Friends sets that are vehicles, just buildings or locations. I don't think there are any Disney Princesses vehicles, and I think there might be an Elves wagon, but I could be wrong about that.