I’m of the opinion that Border Terriers are just naturally good with kids, given the proper exposure to them. Wally adores kids! Most Terriers, however, are not quite so naturally wonderful. Emma over at Emma & Miles did a great post on kids and Terriers, one I recommend reading no matter what breed you want. Even if you don’t have or want kids your dog should comfortable around them; the last thing you want is a dog that hates kids! For a dog to be safe in our society it has to be respectful and polite to all people, regardless of age, size, race, etc. Not to mention that owning a friendly dog makes your life exponentially less stressful.
Kids & Dogs (Particularly Terriers)