I think this is part of why the parent poster used the term "psychological safety". The thing about driving is that you are individually in control, you can choose how you drive and that greatly affects the safety of driving. While public transport may be statistically safer, for some people the lack of control increases the feeling of lack of safety. I am one of those people actually. I've been driving for more than 20 years, I've had several accidents, all of which occurred while my vehicle was fully stopped and I was rear-ended by someone not paying attention, some while my car was parked and I wasn't even in it. I've had zero injuries from driving, and I have an impeccably maintained fleet of vehicles and have extensive driving training (I hold a competition racing license, have driven many different types of vehicles, and have done executive protection/pursuit driving training). I feel significantly safer in a vehicle I own, maintain, and control (including my reactions to others) than I do being exposed trapped in a box with random other people, many of whom are dangerous, without any significant recourse. The only way I'd ever take public transport every day is if self-defense were strongly legally protected and I could be armed at all times, because there are too many crazy people out there that will kill you for looking at them accidentally, or for not dropping a dollar in their hat when they're busking, or whatever other reason they contrive in their delusional minds for why they should harm a random person they don't even know.
Statistically I might be safer taking public transport, but in a car I never have to expose myself to random crazies without an escape strategy, and I can choose how I react to other drivers to prevent accidents (I have avoided MANY MANY MANY accidents in my life due to my awareness and superior driving skills).