The puppies love the kids. The kids at least like them. But my puppies are still learning manners. (Imagine yourself a child standing eyeball to eyeball with not one but two black dogs even if they're well mannered!)
My two black puppies usually wait impatiently behind the baby gate until everyone's done eating and the meeting closes then we let them mill around and greet everyone. (They stand eye-ball level with plates of food on laps and at least eyeball to eyeball with most of the kids).
At the end of the night we usually let them join the group because we need them to welcome and be comfortable with groups of people (and kids) at our house. Friday night my usual puppy supervisors had to leave early and we went over our time so everyone left pretty quickly. (Ellie didn't even bark at my guitar. smile! )
I think my puppies were disappointed that they didn't get their usual social time at the end. (Good thing Bryn was there!) But having the gate means that we could have our meeting and still watch the kids feel safe and go up to them and talk to them and pet them (and get them excited) the whole time. Grown-ups, kids, and puppies did just fine.