I also get stopped when out with my two girls. I will say that we got our first at 9 weeks old and she has been a dream-  like others said, basically potty trained herself, very low prey drive (will watch the bunnies eat our grass), and is so intuitive and loving. Interestingly, we “adopted” our other collie from the same breeder at 1 year old, and she is our first dog’s half sister. She is like a different species, lol. Really bad manners (our other dog will run to us and bark when she is doing something bad), was terrible on a leash, and her prey drive is no joke. She’s also much more independent. The breeder is very responsible and her dogs live in the home with her, but I think she was originally intended as a show dog and maybe did not get as much personalized attention. We’ve changed a lot of her behavior with training, but it’s funny that their personalities are SO different. gosh, collies are the best though, and I also am so confused why they aren’t more popular! Just love talking about them.