>What's the fallacy in teaching everyone the same things? That seems like a good way to equalize life outcomes and give everyone the required skills for succeeding in contemporary society.

What did you mean by equalize life outcomes then?

again, what is your position and proposal?

My position is that kids should be taught math at an earlier age and schools should be properly staffed and funded to ensure positive learning outcomes for all students regardless of their socio-economic background because that will lead to more equal life outcomes.

Then you and TimTheTinker basically agree.

The only noteworthy difference is defining acceptable failure rate, which neither of you did.

What's interesting is that beyond a certain threshold (perhaps around the left-hand normal distribution inflection point), further reducing failure rate ends up also reducing the rate of super-success among students in the same classroom.

There is no way to fail in what I'm proposing because there are no grades. Everyone gets feedback on how to improve and students can receive all the help they need to keep up with the curriculum.

1) What if a student refuses to attend school?

2) Can no student advance until everyone has mastered the material?