I got a chow when I was 14. She was a retired show/breeder at the age of 4 years. Her name was Kayjin and she was beautiful! In my experience with adopting an adult chow, they do tend to be very much a one person dog, however they can adjust when their one person is no longer in the picture. IE she was very much MY dog. Kayjin followed me everywhere and I was the one to wash her, brush her, feed her, play with her and walk her every day. When I graduated and went off to college, my mom kept her and she adjusted to where she was then my mom's dog. She did not like small children. They made her nervous due to the tunnel vision chows have and quick movements of children caused her to bit now and ask questions later. I can't tell you how many times my brother was bit by Kayjin because he startled her or did something in a way she didn't understand. She never attacked him or anything, but she did the one-snap-bite and got him on a number of occasions. She also wasn't very fond of men. She pretty much just stayed away from my stepfather and finally did get to the point where she tolorated him simply because he bribed her into getting fat with him

He also spoke softly and moved slowly, so she eventually got comfortable enough to just sit next to his chair and have him pet her head.
Kayjin wasn't a bad dog. Like I said, she wasn't very smart. I walked her daily and always took the same route (there was a boy I liked on our route and he'd always come out to talk to me when I walked past his house with her. She was my guy magnet

) One day she escaped the yard and she took off...I found her sitting on his front step. Apparently she didn't have enough brains to go exploring on her own so she just took the route she knew

Which made it really easy to find her!
She was prissy though! After having been a show dog, she had a certain prance to her step, especially after a good brushout (which was daily because she had the thickest undercoat!) She'd prance around with her nose in the air and swinging her hips! She knew she was gorgeous! Then one day my mother dropped her off at the groomer to have her shaved like a lion...I had to go pick her up because she was too embarrassed to come out of the drying cage! She'd never been shaved before so it was tramatic for her to look like that. I had to convince her she was beautiful before she'd come out!
She was a great dog though for me at the age of 14. My brother, not so much. He didn't like her and she was always chasing my cat. My mom had her put down at the age of 15 years when her wits were gone and she was suffering from halucinations, arthritis, and thyroid problems. She didn't tell me until a month later. I still hold resentment for my mother for having her put down without me there. She said it was the hardest thing she's ever had to do. Because of Kayjin, she said she'd never have another pet. She couldn't deal with the loss again.
I wouldn't get an older chow with little kids in the house, but I would get a puppy to grow up with them. They are protective, but not too hyper and when raised with kids, they tend to be a lot less jumpy. Kayjin wasn't raised with kids or men, which is probably why she didn't like them too much. But yes, all the chows I've met have been very much one person dogs. That doesn't mean they don't like other family members, it just means they do end up chosing one person in the household to be "theirs".
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Chin Mom to Lila, Skye, Ty, Rolex, Calypso, Lizzie, Jax, Sam, Sage, Lorenzo, Spitfire, Holly, Dylan, Leia, Punky, Kylie, Skylar, Jetta, Oreo, Emma, Forest, Georgie, Alexis, Picador and all the kits!
Pittie Mom to Kali and Orion
Rattie Mom to Drake and Dumbo
Bunny Mom to Dutchie
Plain ole Mom to Zach, Brandon and Connor!