As the mom to a boy who just turned 13, neighbor to a family with 7 boys ages 4-9, and friend to many boy-only parents this would NEVER fly in my yard. ANY kid can hurt chickens even if they didnt mean to. More importantly here the problem is the dogs hurting the boys. Not saying your dogs are dangerous but look at it from the dogs eyes. Here are 2 male subjects sneaking around your property, yes dogs can smell the difference in male and females. The dogs natural instincts is to stop that intruder no matter the age of it. The boys would have deserved it and of course the dog would be to blame since society blames everything on the other person. Nobody has to accept responsibility for their actions. It just drives me nuts. If I saw any kid sneaking onto my property they would be yelled at sternly the first time, the second they would see the end of an UNloaded gun.
Sorry...rant over