Women are round and Men are pointy

Sign on the Women's washroom at Okanagan College

Sign on the Men's washroom at Okanagan College

I don't how it happened, but evidently it has been decreed that Women are circles and Men are triangles. Do washroom users make the association between shape and gender? I guess they will with enough repetition.

And the irony is that the woman in the skirt, on the top sign, looks quite triangular.