Yes. 100 percent, absolutely, no doubts, yes. If your dog is over (a very arbitrary, but we can drop it lower) 1 stone (for the brits), 20 lbs (for the amerikkans), or 8 kilos (for the ~~euros~~ intelligent worlders), you should have to have a significant insurance policy on the dog (I think my local authority sets the 'dangerous dog' minimum at $100 grand), a license that can only be obtained with at least 6 months training, and a yearly inspection of your facilities and the dog.
Reasoning: I've had to patch up, or take the parts with us, too many folks who have been bit.
For context, see research by Myers, D., 1993 (which I can't find a link to at the moment) about differences in satisfaction in couples in India in arranged marriages and couples in Amerikkka in marriages of choice, and compare it with the later research Myers, 2005.
More specifically to your statement about auntie zeroing in on something, see MacDonald & Ross, 1999.