This is not to say that dogs and children don't belong together. But they don't belong together alone . Proper supervision and teaching both children and dog on how to behave is a normal part of making the dog part of the family. With that said, Borders do love children but are somewhat less tolerant of little hands grabbing at them than other breeds, like the Golden Retriever. If you assume that you have a dog that trains as easily as a Golden Retriever or Labrador Retriever, think again.
Borders are terriers .
Terriers by their very nature tend to be difficult to train. Add stubborness to intelligence and you have some work cut out for you. They do tend to be easier to train than most terriers but terriers, in general, are very challenging to train. Borders respond best to motivational training where positive reinforcement is used heavily. Relying only on negative reinforcement will not work with these dogs.