piglet, I am sorry you are having a hard time with driving tests. My SIL took years and lots of tests to pass and she, like you, is still not very confident.
However, because she won't do anything beyond driving on the (traumatic, apparently) school run, and there is poor public transport where she is, her dcs are limited in the afterschool activities they can attend.
As for poor drivers, I would rather be in a car than on the pavement or on a road on a bike when I were to encounter one. Even being on a bus puts you at risk of poor driving from the bus driver and other road users.
It does not change the fact that I think driving is a key skill for women, particularly after they become mothers.