Why are civil engineers shit when it comes to mentoring?

In my ten years of working I've never had someone take me under his/her wing and mentor young and naive me, instead it's just plain management and doing tasks. Any mistake done will be met with disapproval as if they expect you to know a to z from day 1. It's not just me, I've heard that this is the case for many young engineers, especially the ones who work in private consulting.

How do these dinosaur-ass boomers expect the younger generation to uphold the industry if they barely mentor and teach them the proper work arounds in consulting?