Thinking is not necessary, must check brain at door before entering. But in all fairness, most people are never taught to think critically.
A few months back my son thanked me for teaching him when he was very young, to not just accept everything that was told him, but to reason on and weigh all the various factors about an issue. A small compliment but sincere, assured me that I did one important thing right in his upbringing. Has heped him to see the nonsense of the borg.