A lot of assumptions are made about dogs harming children based on the incidents that get in the papers. Dogs not trained, kept in neglectful conditions, ignored for the most part or conditioned to act aggressively or unpredictably. If only the papers would highlight dogs that live in harmony with families and each other. A fine example is the dog rescue organisation that also offers daycare for 40 dogs each day, where my dog goes twice a week. The dogs are assessed for aggression and nervousness, watched as they play and socialise, and well trained. No incidents in five years. In the last year, the two owners have brought rescue dogs into their farmhouse and six or seven at a time live in until they're rehomed. No incidents and just over a hundred dogs rehomed from there in the last year. My grandchildren have been introduced to groups of dogs as they have started to see the fun they can have with each other, under supervision. They have visited the rescue and daycare dogs, too, and been safe and happy - they learn the rules and so do the dogs.
Please don't judge dog behaviour by what is known of ill-trained dogs. Family dogs that are known, treated with affection and discipline, and taught good manners, and not allowed to show aggression, are good companions. Plenty of people have regular family get togethers with their beloved dogs and young children, with no adverse effects.
new2me your nervousness would be enough to put me off bringing my dog along. Knowing how to behave with dogs and what expectations you can have of a small group of dogs is important. The dogs look to you for guidance and what they're allowed to do, or not. People who don't feel confident about groups of dogs together can misinterpret what they're doing if they go to slurp an available arm or leg, or think a piece of food being waved around is for them.
Iam64 I know our dogs would get along just fine with each other and with young children because the effort has been put into showing them the way. Sadly, some dog owners don't train their dogs properly and then they make judgements about everyone else's dog! 