A critic is a man who knows the way but can't drive the car. (Kenneth Tynan)
I often encounter "critics" when I am teaching students for entrance examinations. They are the type of students who always criticize which reference book is better than which, or which cram school is better than which. They always criticize what to eat is good for the brain, or whether morning or night study is better.
However, I have never seen a case in which such a critic type student passed a difficult-to-enter university.
The same goes for the parents. I often meet parents who are constantly gathering information on which high school would be advantageous for their children to go to college. However, I have seen too many cases where the parents are only serious but the students themselves are very careless.
The reality is that students of single mothers, who are in a difficult situation and cannot afford to send their children to cram school, are more likely to pass the entrance exam to difficult-to-enter universities.