Part of the issue for the "real" people is they see no use in a dog that won't bite for "real". In a lot of cases they see trials as advanced obedience with "bites". The trial is always the same so it is a test of the ability of the trainer and dog to follow a pattern, not a test of the dogs working ability.
Ok Vince, now I am going to irritate everybody.
If you train for "real" you have a big problem. You can train for anything you want over and over and have a "hard" dog that tears everything up. Knocks the aggitator on his butt every time. But the dog knows the aggitator and "knows" what to "expect" from them. They have spent a lot of time working together. The dog just looks great!!!
So how do you know it really will bite for "real"? The answer is YOU DON"T!!! The only way you know for sure is to get into a situation where the dog has to bite for "real". How do you proof the dog? Hang $20's out of your pocket and go walk around the bad part of town and hope someone will rob you? Not very pratical, you have no control over the situation. If the dog doesn't bite you may be dead.
So what can you do? Enter a trial. Now the dog, and you, are stressed. The dog doesn't know the aggitators, and it isn't on it's home field. Any dog can look good working an aggitator it knows, but somebody new may be a totally different story.
Ok so you don't think Schutzhund is a good test? Try a different trial. There are lots of them. Yea you may hve to train for some things you don't find useful, but it is an oppotunity to test your dog in unfamilar circumstances. Some of the trials are designed to test dogs more for "real" life. I will use NAPD since I know about it. The obedience is basic obedience everybody does. Sits, downs, recalls, and distractions. Very inventive distractions, aggitators in full bite suits comming up to shake your hand, throwing balls, playing catch, spraying water, anything they can think of. And you don't find out what it is until the day of the trial.
Protection same thing. Call offs, working away from the handler, "kidnap" scenarios, passive bites, fighting outs, long send outs, guns, hoses, buckets of water, obstructions, different footing, leaf blowers, multiple bites, discrimination between a dummy bite suit and a real person.
I have seen people just walk up and do well from other trial diciplines. The first trial I watched had a dog from French Ring placed. The current National champ has a PH1 and PH2 from KNPV.
These trials are tough, I have seen trials where not a single dog passed all the scenarios. Every single dog took a zero on one exercise or another. I am not sure, but I don't know of a single dog that has reached the top title level. This is tough work. It's fun too. It is a real test of both dog and handler.
If you can't be a Good Example,then You'll just have to Serve as a Horrible Warning. Catherine Aird.