Well they've been used as service dogs in place of german shephards for > 10 years. Not sure why you picked 3-5 years arbitrarily. They're bred for their actual

Well they've been used as service dogs in place of german shephards for > 10 years. Not sure why you picked 3-5 years arbitrarily. They're bred for their actual talent as working dogs (and holy hell are they fast!).