It’s such a difficult situation to be in, and I really sympathise. It must be so hard for your mum dealing with these changes, and for you trying to help her.

Can you subtly suggest the how good Uber (or whatever car system that might work) is? No parking issues, cheaper overall costs, etc.

I remember how hard it was to get my mum to stop driving, and she wasn’t great at it even before age-related decline.