Why do people continue to breed dogs so small?

She probably hasnt been socialized but then again she is clearly so fragile that it wouldnt be safe for her to interact in normal doggy ways anyway..She is only good for being carried around like a proper handbag dog.. I worry dogs like this are being depreived of nutrients too to encourage stunted growth. I hope she finds a knowledgeable and caring owner soon.
I dont think she was a fan of shiny floors tho!!