The worst thing for me was a large toy store (about 15 years ago now, so hope it’s changed)
DS, about 7 at the time, was really into drawing with felt tips. We were looking for sketch pads, pens etc. Couldn’t find them. Asked the assistant and they said it was on the Girls Floor.
Turned out the construction toys (Lego and the like) were on the Boys Floor. And paints, pens, paper etc were on the Girls Floor.
And we think this shit comes from kids. Social conditioning.