Answer:
True.
Step-by-step explanation:
It is impossible to be critical thinkers all the time, because the critical thinking is born of the knowledge of a subject. To criticize we need to know and it is impossible for us human beings to know all branches of knowledge in the world to the point of developing a critical thinking about them all the time.
We are only critical thinkers in what we are familiar with and in what we have a certain level of knowledge to list the negative and positive points of a subject in our criticism and debate it with strong foundations.