It's the lazy way out.
Most people can train a dog themselves if they start young. I suspect the problem is, they trained their dog into bad habits and don't know how to train them out of them so need classes.
They are probably as much *train the owner to be a good owner* as they train the dog to obey.
Absolutely right. Supposedly less than 5% of people bother to train their animals, not even the most basic no/come/sit/ stay. It’s probably even lower after the rise of 24 hour screen entertainment/screen culture.
FReegards