This is geared more towards the few people who think it is okay for your kid to touch anyone's dog without permission. Or the people who consider dog owners to be "mean" or "rude" if they say no to your child.
If you let your kid run up behind a strange dog and touch it and it whips around and bites your kid would you take the blame for not watching your child as they touched an unknown animal or would you blame the dog/dog owner for the bite? Or if you asked the owner and they said no, but you let your kid touch the dog anyway then would you hold yourself responsible, or the dog and dog owner?
On the contrary. If you let your kid run up to a strange dog without permission from the owner and your child hurt the dog. Would you claim responsibility for the vet bills or would you count the dog owner responsible. If the dog owner said no and your kid still hurt the dog would you hold yourself accountable?
I expect most of you to answer "no" or "blame the dog/ dog owner" to these questions and that is the precise reason that I don't appreciate people running up and touching my dogs without my permission. I do not want to be held accountable for injuries sustained to your kids or my dogs during a walk because you didn't teach your kids that running up to a strange dog is potentially dangerous. My dogs haven't shown any aggression but, like any creature, they may react differently when surprised. Your child running up to them and randomly touching them surprises me, so I could only imagine it surprises them.