Donnadoon, your assertion wrt children not interfering with each other or taking each other's toys is not borne out by my experience of bringing up five children in a built up area with playgrounds, sandpits, public swimming pools and nice library with children's reading floor.
If a puppy is off lead during recall training then he is not under control at all times.
SaintlyJimjams, the rules about property owners' responsibility wrt attractive nuisances on their land were designed with trespassing children as the main potential victims in mind for hundreds of years. The potential of children to trespass is renowned.
LtEve, if you take an animal out in public and have it off lead, the public is either correct in assuming you are completely in control of the dog or it is not correct.
If correct then what is the problem? If incorrect, and the dog is not completely under control, then you should never have taken the dog out in public. (By public I mean any place the public have access to including MOD land that is inadequately fenced and unsecured/unguarded as you have described the land you exercise the dogs on). For the purposes of liability, access is the key, even access that constitutes trespassing.
The MOD owned land that I use, and have permission to use is securely fenced, less two 5 bar gates that have a HUGE "MOD Property NO unauthorised access" sign attached. It isn't locked, because locked areas have to be patrolled and guarded and we (the unit 'we') no longer have the security staff to do so. None of this makes any difference where dog bites are concerned, and since there were people there that you didn't expect to see when you took your pups out then you should expect to encounter people there on a regular basis.
For the purposes of understanding responsibility, being out of doors and away from your own secure and inaccessible private property means you are responsible for anything your dog does to any person or their property. This includes bites and chewing of handbags, peeing on and ruining personal property, etc. The reason this is so is because you are exercising a privilege, not an untrammeled right, to bring a dog out in public, and complete control of your animal is required so that you do not impinge on the rights of people to enjoy the outdoors.
A dog is not a person and does not have rights accorded to people. A dog is suffered in public under certain conditions.
If you do not own private enclosed land then maybe you should rethink the decision to work with dogs or own dogs. Members of the general public do not owe you any cooperation when you decide to impose your animal on them during training or exercise.
I think it behoves all the complaining dog owners here who want people to make allowances for the fact that their animals' behaviour is a work in progress to remember that children are also undergoing a period of training and that in the case of children this period can be lengthy.
Saintly -- one step forward and six steps back applies to children too.
SN/NT is called a 'spectrum' for a reason. There are no neat boxes.
Chiggers, the muzzle and lead were factors in the judge's decision. A lot of dogs out and about are neither muzzled nor on leads. Dog owners here on this thread have scoffed at the idea of muzzling and are insisting that responsibility lies with parents of children only.
The judge in your anecdote implied that dog owners have a responsibility to keep their dog under control and found that they had fulfilled their responsibility:
Judge found that my friend did what was more than reasonably expected in order to keep the child from getting bitten and that the parents failed in their duty of care to keep their child adequately supervised under reasonable control.
What the judge was saying there was that the dog owners have responsibility. Your friends exceeded the requirements. There are reasonable expectations of precautions on the part of dog owners. Although you do not report what exactly the judge had in mind, the owners here had a lead, a muzzle, dog was right beside them, they told the child not to poke its fingers into the muzzle, they moved to another table and they told the parents what was happening.