Thank u all!! I feel welcome already

i know that each dog is an individual but as a breed what are yorkies like with children? i have two little girls, a three year old and a one year old. both are very gentle with the dogs of friends and relatives but i wasnt sure if it was best to wait until the children are a little older before buying a yorkie. of course i wouldnt leave a puppy with the children unattended. any advice very appreciated xxx