I think once you reach the point of docker-or-not you're probably beyond simple one-directional mentoring. At that point you've earned your opinion.
Mentoring is however wildly effective at helping people get to grips with tools. As an example learning django isn't particularly hard, it has a great tutorial, but I wouldn't be surprised if a junior programmer with no web framework experience would learn it twice as fast if given someone that'll answer their questions promptly.
Mentoring is however wildly effective at helping people get to grips with tools. As an example learning django isn't particularly hard, it has a great tutorial, but I wouldn't be surprised if a junior programmer with no web framework experience would learn it twice as fast if given someone that'll answer their questions promptly.