When I used to teach, I always told the story of making the roast. It’s a parable, but it works.
I was making a roast one day, and I cut the ends off it before i put it in the pan. My kid asks “Why did you cut the ends off the roast?”
“Because that’s how my mom did it.”
Curiosity got the better of me and I asked my mom “Mom, why do you cut the ends off a roast when you make it?”
“Because that’s how Grandma did it.”
Again, curiosity – I call my grandmother and ask HER: “Grandma, why do you cut the ends of the roast?”
“Oh, well my pan is too short.”
<head meets desk>
There is an inherent danger in doing the things the way they’ve always been done without giving thought to why. Situations change, technology evolves, and suddenly the “way you’ve always done it” bcomes the most inefficient way possible because some new method has come along, or even worse, becomes the WRONG way to do something because the underlying technology has changed.
“Hard” vs. “Soft” zoning comes to mind. No-one in their right mind does hard-zoning anymore…Most vendors discourage it, a few won’t even support it.
But 15 years ago, it was best practice. Things change, technology changes, so people MUST change along with it.