For me this is no different than laws requiring women to wear a burka or any such other garment in other countries or for people in general to adhere to certian dress codes in public, nude beaches not withstanding. (When in Rome as they say)

Also lets not forget that many misconceptions and misunderstandings about Islamic attire for women abound and many more women than one may think actually choose to wear what they wear and tech their children to wear it as well, just like your own parents tried to keep you dressed the way they wanted too when you were growing up.

In reality, Islam is not a monolithic geographical bloc with any one set standard and dress practices can be secular and themselves vary from country to country and even from cultural ethnic group to group within any given country.