It is a stereotype, but it is useful.

Ronson's Rack store, Granville, Street, Vancouver

Ronson's Rack is an end-of-line outlet location for the Ronson's chain. The stores are not at all fancy, and stuff a huge amount of odds and ends into a small space. The stores sell both men's and women's shoes. And how are consumer to know which is which? Easy; pink for girls and blue for boys.

Sign for Women's shoes (Size 10)

Sign for Men's shoes (Size 10)

I know, a stereotype, but one that the consumers will all be able to quickly understand. and in these stores time is money and self-serve is the order of the day. So it may be a cliche, and not at all politically correct, but the consumer understands it and that is what matters most.