There are so many choices I made simply for health insurance. Is it the ideal role I wanted to play, or the TV show I wanted to be a part of? No, but it let me afford to go to the doctor.
One of the great perks of being an actor is you're only as smart as the job you're in, you know, and you're only as informed as the job you're in, and you do become an expert, and you read all the books, but then there's a part of, like, you move on.
There are certain things you learn to do as a parent - using every single part of your body because you're multitasking all the time. You're holding the baby and you're closing the door with your left foot.
I find that all great directors, and I would include Ben Affleck and Clint Eastwood in that, they have great confidence. And with great confidence comes great freedom for the actor.