your adult life and career will be ruined even worse if you cant grasp basic math.
The school is supposed to be a safe learning environment, not a simple daycare.
learning means giving a feedback to improve. If you destroy the feedback mechanism that gives negative news, then people stop learning altogether.
Imagine trying to train a neural network, but you dont have backpropagation, because negative feedback is bad. So you stick to throwing noodles at the wall and hope something will stick