So much of our lives are defined by habit or what the guy next to us is doing never wondering and knowing who and what we support with our actions from the detergent Mom always used to my favorite dish I make... A lot of my life is unexamined habit.
The unexamined life is not worth living.
An unexamined faith is not worth having for fundamentalism and uncritical certitude entail the rejection of one of the great human gifts: that of free will of the liberty to make up our own minds based on evidence and tradition and reason.