One reason that it is important for the babies to say wih mama til twelve weeks (beside their fragile nature and tendancy toward hypoglycemia) are developmental milestones that occur during that age span (9-12 wks) like sibling interaction and learning limits about biting and general behavior that they can t learn without their yorkie family. I have five young children and I was worried that I would not be able to buy a yorkie from a reputable breeder. We have raised livestock all of their lives from teeny fragile baby chicks, ducklings and turkey poults to little lambs and goats and rabbits. We have bottle fed baby bunnies and given pasty booty baths to teeny baby chicks- not to mention that oldest child down adjustment to my own newborn babies. My kids are kids And they can get rowdy but with a crew like ours limits and obedience are a big deal. We had lilah's ex pen with her dog house and potty pad up for a month before she came home so that the kids could get used to being aware of her 'safe space'. We had a lot of preperation before we came home with her. They love her and she loves them- my youngest more tha my middle kids. I would never say never- my girl is so important to me and an important part of all of our lives and I would be heartbroken if we had been ruled out as unfit because of my children- but I will say that I don't think most people do the research and take the care to understand and prepare for a yorkie puppy- with or without kids sadly- and when you have children you have that many more responsibilities to protect your puppy and prepare yourfamily. If you don't feel your family is ready or if after some research maybe a pup from this breeder is not right for your family- go with your gut- because this is a long term commitment and a little loving life that I know you want I do the best for. I waited four years before I went for it- I read several books, Attended shows- hee hee hee, I bought her a dog house a year before I got her! And honestly after she completes some more training certifications I would be so privelleged to have another girl join our family and be her best friend hopefully for the next twenty years