Stella is 19 months. She absolutely KNOWS sit. She does it with distractions or not. Sometimes she is spot on and sometimes she just takes her sweet time. She learned using positive training. Lots of treats and praise when she was young. BUT she doesn't always sit right away. And sometimes she just takes her sweet time to get her butt down. Or she will turn around in another direction before sitting. Or she will grumble before she complies.
If she is focusing on me when I say sit and she doesn't, sometimes just a raised eyebrow will do it. Or I clear my throat and she does me a favor and sits. I am thinking she should sit when I say sit....
I don't think that this is a big issue. Mine sometimes tries cheating when I tell her to sit...she doesn't put her butt all the way down
I think that you should keep moving forward and be consistent. I have also seen some dogs do this that were having a problem with the surface...concrete floors, carpet..all of these things feel different to the dogs and maybe make them feel uncomfortable. I seen dogs in class that wouldn't sit on concrete, but when a mat was put down, they sat immediately. Just a thought
Misty- Samoyed Mix, Tannor- Golden Retriever CGC
Robyn- GSD CGC, TC, Midnite-GSD CGC,TC, Brennan-Golden Retriever CGC, Batman-Husky/Greyhound , Apollo-GSD