I can't say I've ever really met a Boston that I would say is a good kids dog. They've all been, well, completely insane, balls to the wall, dog-reactive...not something I'd want to hand to a kid in a ring setting. However, knowing it's going to be you guys and Syd, and the fact that you'd either go through a really great breeder or know enough to handle a rescue, it might work. 99% of people I meet with Bostons (and it's been A LOT. Like, ALOT A LOT) have no idea what they're doing with them and just accept their atrocious behavior as "this is how Boston's act."