Dachshunds may not be the best pets for small children. Like any dog, dachshunds need a proper introduction at a young age. Well-trained dachshunds and well-behaved children usually get along fine. Otherwise, they may be aggressive and bite an unfamiliar child, especially one that moves quickly around them or teases them. However, many dachshunds are very tolerant and loyal to children within their family, but these children should be mindful of the vulnerability of the breed's back.