As part of my job I drive someone 30-45 minutes each morning & each evening. It's a non negotiable aspect of my job.
She travels in the back, wearing a mask.
Even pre Covid & in warmer weather she has always hated the windows being open. I don't open the back windows, but the info open the front windows at least a couple of inches I have the heating on, but without the fan - but given the windows are open, I'm not sure the fan matters?
My car, my rules. But I try to make her comfortable.
Are you in a position where you could tell her to get another driver if she keeps kicking off?
I really don't want to have to do that because I do care about her & I do like my job - but if she became really unreasonable I could tell her to find someone else.
I certainly don't think someone sitting in the back, not front, makes you 'safe' but I do believe it makes you 'safer' you're father away from large droplets & the smaller ones are somewhat more likely to drop and be destroyed.
YANBU at all. She is being ridiculous. She's getting where she needs to go, why is her ego so wrapped up in riding in the front of the car? She's physically disabled, she isn't mentally disabled, just be straight with her.