Association Culture ...

[Freddy]

Seems, from what you're saying about yourself as an association, your group needs to analyze what essential things there are about which veterans are aware by virtue of "tribal knowledge" and how newbies come to acquire that body of knowledge bit-by-bit over a long--perhaps too long--a period of time.
Locally I'm becoming aware that new inductees simply don't know what's expected of them unless oriented in some way by someone.
Many veterans consider the need to convey such simple expectations ridiculous because, after all, they already know that themselves. Truth be told, it takes a long time and a lots of learning opportunities for "tribal knowledge" to take full hold in a newer person. Doing what you're doing certainly goes a long way to overcome that.