It is better to wait till they're older but Marcus came home with me at 8 weeks and did fine. I don't know any other chi owners in my area so Marcus has had to socalize with other breeds and he does fine. He's a bit cautious with bigger dogs till he sees how they are to him but that's sensible. His best friends dog wise are dachshunds, LOL. As far as children go he was raised by a breeder that had children so he likes them. My first chi was raised by a breeder in her late 60's and had never been around small children and he didn't like them. Just as with any other dog it's what they are exposed to.