Gender-neutral toy catalog

December has just arrived, but the over-commercialization of the holiday season is in full swing. You've seen the billion advertisements of sales and deals at various store locations just in time for the holidays. 

Many parents are bombarded with advertisements for toys that their children must have. This article talks about the controversy surrounding a gender-neutral toy catalog distributed in Sweden. The catalog shows a boy taking the temperature of a doll, a girl playing with a Nerf machine gun and boys and girls playing together in a play kitchen, using a pretend ironing board and playing at a doll's changing station. 

The author believes the catalog is sending a message to kids early, that it's ok to play with whatever toy makes them happy, no matter their gender. 

Why isn't it ok for girls to play with Legos? Or for boys to play house? 

Do you think gender stereotypes are enforced when kids play with only toys prescribed to their gender Is this problematic?