Most of the really experienced people at companies I have worked for where surprised when I asked about what they did and why. They somehow assumed someone else was supposed to be training me. They were the only ones who knew answers to particular questions I had. They were shocked and sometimes didn't believe me that I asked everyone but them first. I don't blame these experienced workers for not sharing their knowledge, someone should have told them, though, that they are expected to do it, there are no systems in place at most places. Most companies seem to believe that knowledge transfer just happens magically,or should.