MawtheMerrier, Make it clear it is a big ask and see if she suggests any sort of solution. I understand, thanks.
We live where driving is a necessity, I sometimes forget that others don't drive my sort of distances with alarming regularity.
Thus, now I see another reasonable side to this.
We'd drive for mum, happily, and think nothing of it. We'd both love it if our mums were still here, to be driven. 
What to do with immigrants? - ask Shakespeare
You’re the receptionist. What would you have done?
A super-quick, easy dinner for Gdcs when you’ve all been out all day and they’re ‘starving’….


