gavra: There’s a tradeoff that needs to be evaluated. Ideally, indeed, women should not be working outside of the home. (Stay-at-home-moms is in fact more common amongst chasidim.) But oftentimes there’s unfortunately no choice but to have a second income or for the wife to bring home the groceries.
Sometimes a b’dieved is a necessity.
Very good. So you will admit that a blanket statement such as “no woman should drive” is really Quixotic, just like “every person should be learning Torah 24/7”. Certainly not something that is meant to be put into practice, even as a general rule.
By placing a restriction on driving it accomplishes a limitation. The other items you wonder why aren’t restricted, would almost make it into a ban on necessary and permissible travel.
Similar to driving, the prohibition should be a blanket one, with specific exceptions allowed for what is absolutely necessary (and then only with additional gedarim, such as Burkas).