Would you say it is normal to not learn anything in grade school?
I think most people don't remember what they learned in grade school. Is there a reason why you are thinking about the past?
I don't like to reflect on the past
I don't think grade school is meant to teach us anything but is more about the emphasis of getting an education and being in a habit of going to school and developing social skills with classmates. It probably has shaped you one way or another that you just don't realize.
That's stupid. My childhood is up in the past and I can't do anything about it.
You should still get an education, while you don't think about what you learned in grade school anymore, you still use that stuff all the time whether you know it or not. Most of the things that you know right now started because you learned during school.