This is how you shrink ambition in society - a culture where kids turn jaded and decadent by the time they reach youth (sometimes earlier)
I don't think it is wrong to push kids hard from a young age
What's wrong is to benchmark them against each other, without an absolute standard to aspire to
The great John Stuart Mill in the 19th century, who had a remarkable tutor in his father, warned against "competitive" education in his autobiography