Uh. You’ve missed the point there.
Firstly, the question you need to ask is WHY those kids played the way they did. The suggestion is that they are conditioned to do so. From that same article:
“There is a fashion today to say that gender is purely a social construct. In reality, gendered behaviour is a mix of biology and social influence“
Secondly – even if the majority of girls want ‘girly stuff’ and even IF it’s not because they’ve been conditioned to do so, you should not therefore behave as if ALL girls do. Because it can leave those who don’t feeling like freaks. You get kids coming home from school saying things like ‘I really like Batman but that’s boy’s stuff’. This happens. It might not have happened to you but it happened to us. It happens because even though you might not be telling your kids this, they pick up on it. They see the boy section and the girl section in toy shops and they think that’s how it has to be, without bringing it up. Trying to go against this kind of programming is a constant uphill struggle.
I don’t want my kids or anyone else’s kids to be conditioned into boys like this and girls like that. That’s why I make these posts – not because I want to be ‘professionally offended’ or whatever you are going to say next.
The OP could have asked the exact same question without loading it with gender conditioning. What if it had been a boy who wanted a non-violent game? You’d have asked ‘what non-violent game?’ So why bring gender into it? Sure, MOST boys might like violent games, but not all of them. Similarly, most girls might like non-violent games (whatever, not even sure what you meant by ‘girl’s game’) but not all do. This is the key point.