I think having been involved in dogs for a lot of years raises the odds significantly that someone has piled up a lot of knowledge. People who have had dogs for a lot of years have likely been through a lot of trial and error and learned from it. They have experienced perhaps many temperaments and learned how to read dogs quite well and experienced many different situations and learned from them.
I'm not saying that a less experienced person doesn't learn fast and perhaps catch up quickly. Or maybe they might even have a mentor or go to classes where they may learn at an accelerated rate. But generally someone who has been involved in dogs for many years probably has acquired enough experiences to be able accumulate a lot of information. Not always. We sure know about those old school, compulsive, yank and crank, intimidate folks who, because they had dogs for a lot of years think they know it all. It's not
ALL about the length of time someone has had dogs. There are many factors that play into what someone knows. Someone could have gone to school for a few years, but winds up being more knowledgeable than someone who had dogs for a long time. Of course, I'm a firm believer in the more sources to gain knowledge, the better....like say, school and hands on.
People who have installed irrigation systems for many years are probably more experienced and knowledgeable than someone who has just begun to install them. If I hire someone to put in hardwood floors or a new roof on my house, I'm going to look for people who have been doing it for a
long time.
And of course it doesn't mean that someone who has been in dogs for a long time couldn't be a psychopath and abuse them. Or a hoarder and have dogs living in horrible conditions. I guess my post was sort of generally speaking.