I don’t want to speak for all Schutzhund clubs, but the ones I’ve seen/been to are all “volunteer” organizations. Your helpers, your TDs, and anyone else that helps, is there because they want to be and they enjoy working dogs. The minimal payments that occur aren’t a salary and are just there as a “thank you” to the person that provided you with a service. This leads the people to focus more on the ones that are putting in 100% of the effort and not really want to deal with those that are doing it half-heartedly. Sorry, that’s just how it is. If I’m going to spend most of my Saturday working with dogs, I’d rather focus my time on those people that want to succeed and want to get somewhere than the people that are just doing it one day a week and not really headed anywhere. On top of that, the protection phase is pretty serious, so when people admit to not being super serious about the sport, it’s questionable to then train their dog to bite. If you’re not serious about the sport, how do I know you’ll be serious about the responsibility of owning a bite trained dog?
The clubs are also just that…clubs. So I’ve seen a lot of people get thrown off by the way that the training is done. Generally, it’s on a first come first served basis, in which tracking happens in the morning (weather permitting), then obedience, and then protection. This can basically last all day. Most people are used to what is basically a private lesson, I schedule a time to show up, I train for 30 minutes to an hour, and I leave. Well…that’s not how it happens at most Schutzhund clubs. You can basically expect to be there all day. And from your description of your family life, I’ll just put it bluntly, very rarely do you see someone with children in the home, out on a Schutzhund field. Not that it doesn’t happen, but there are generally other things that come before dog training when you have children, and if you start missing every other weekend because of this or that, the club will quickly not want to work with you.