I think the ladies choose they way they dress. Greta has her own show and always wears a business jacket.
Those aren’t “ladies”, they are window workers:
Prostitutes protest closing Amsterdam ‘window’ brothels
http://news.yahoo.com/prostitutes-protest-closing-amsterdam-window-brothels-205802259.html;_ylt=A0SO8xX4KTlVPUYAAgtXNyoA;_ylu=X3oDMTByc3RzMXFjBGNvbG8DZ3ExBHBvcwM0BHZ0aWQDBHNlYwNzcg—