I don't know if it's age really. I've explained, to developers well older than me things like "well, this practice is bad because <reasons> here's an article from <before I was born>" or having to translate old fundamental concepts into their latest hip implementations. "this use calls less for virtualization and more for something like a Chroot..." "what?" "Sorry I mean like a Jail... cgroups...? LXC...? sigh Docker." "Oh! Yeah, that makes sense. nods as if they understand"