Try that logic with a gun.

If they fail and part of the failure experience pulls the trigger, sending a bullet into their head - is that a good learning experience?

I understand your point - and at it's premise, I agree with your point.

But your point is not fitting to the circumstance.

In this circumstance, it is a loaded gun and they are playing with the trigger while pointed at their face.

As a parent, you have a RESPONSIBILITY to understand the difference and act accordingly.

You're missing the forest for the trees with your argument.

Do you not know the gravity of this topic?