This thread was stupid from its opening sentence down to the last thing written (including my own for responding to stupidity). Nobody is asking anyone to adopt the hanhagos of a small chassidishe community in England. If they say its because of tznius, then so be it. Feel free to disagree and give your wife/daughter/mother driving lessons and facilitate their getting a drivers license.
I give all those who are bothered by this hanhaga a bracha, this should be the biggest thing that bothers you, your entire life.