"" So many elderly women looking after their spouses and unable to leave the house because they can't drive. ""
Why does not being able to drive, prevent you from going out? That's what Attendance Allowance, is for, it makes up for the extra cost of taxis etc. I'd say that's a Carers issues or lack of services, in your area.
I can't drive because of medical issues. There's places that I used to go in Wales, that I can't get to, but I've just stuck to places reachable by public transport (from Liverpool) and there's enough of them, that I haven't suffered. I've also been on coach day trips, some ran by a local Church, which I thought would be full of pensioners, but wasn't.
I'm hoping to be able to drive again, but only because I like camping. When I go to Cities with Christmas Markets, or 'Down South' etc,I go by train, even when I could drive.
I'd rather get the train to Edinburgh, or to Stratford-upon-Avon etc, than drive. All of these places, I've taken relatives/friends, who have health issues, or use Wheelchairs to.
There was a time were I'd think twice, because of the cost of a taxi, from the nearest station, but it's still a lot cheaper than running a car.