I am usually the person who drives in our relationship. My husband doesn't like driving, and prefers to avoid it. I also prefer to avoid him driving
I don't like driving with my mom. She has some issues with mild seizures that lead her to be a dangerous driver, so I usually drive out of the two of us. My dad is a good driver. My husband would say my dad is a crazy driver, but he just drives fast. After driving with my dad, my husband said, "Well, you come by your leadfoot honestly." My dad follows the basic rule pretty closely--if the conditions dictate going slower, he goes slower.
It's really difficult for me to be in the passenger seat sometimes, because I am so used to being in the driver's seat, but I try. I usually trust my friends' driving skills.