I agree with everyone's comments - depends on your kids and the Yorkie. We got our first Yorkie when our kids were 4, 7 & 9. Our children were not "hyper - out-of-control children" -- they LISTENED & OBEYED the rules. They did great with Mocha & Mocha did great with our kids as well as our siamese cat. If anything, they babied her to death!! They dressed her up, pushed her in doll strollers & even took her on bike rides!
She lived for 15 1/2 years with never an accident! (Mocha was about 4 pounds.)