Your whole life has goal posts laid out for you. You go to elementary school, get good grades so you can get into honors classes in middle/high school. And you do this again for college. Everything is quantitatively measured. How many questions did you get right? How many days did you attend school? How many extracurricular activities did you participate in? How many hours did you volunteer? All check boxes that other people hate laid out for you so that you can be measured in the funnel. And, artually, for some people this process can continue in their career. You get good grades in college, then you get an internship at BigCo. Then you get a job at BigCo. On and on until you die.
The problem is, you never had to figure anything out. So if you ever decide to do something non-standard or if randomness hits you too hard, or if someone along the way deems you "not good enough", now you're off the track. And you have never had to set your own goal posts. If you have to be constantly told what to do, employers are not going to want to hire you.
I think the lack of critical thinking goes hand in hand with an inability to function without rulebooks and structure.