First, let's learn to account for emotional, mental, spiritual costs. Then we can talk about the productivity hit.
Essentialism is what's needed here.
Nope. That just means it's a moonshot. Besides I don't agree with current education approaches, so why pedestal one over the other.
Also, there ARE metrics of subjective wellbeing and we can use them. There's a culture of denial and aversion to real challenges that leads to people to escape it through numbers and dollars. What you're saying sounds like what that culture says.