There are aome diferences in opinions when it comes to collars. One thing is certain, we all agree there is a connection between collars and collapsed trachea in this breed. However, some of us use collars for ID purposes only, and a harness is used for attaching the leash when walking. I honestly use two kinds of collars:
1-kitten breakaway collars when at home, and that includes being home alone.
2-buddy belt buckle collar on special occasions when supervised by me.
I've read here on YT how many pets were returned home when escaping because the people who found them called the number on their tags. I myself returned a black lab to her house after she escaped while her family was at Disneyland. I just called the number on her tags.
it really makes me feel a little safer to have tags on him even though he's microchipped. Oh, and the breakaway ones are really secure. They only breakaway if he were to get caught on something, which knowing Kaji, he'd freak out and hurt himself. Anyway, that's my 2 cents on the whole collar thing. And I do second recommending Maximo for getting buddy belts. She's a doll and helps with getting the right size. They're pretty pricey and fit is the key to using them properly. We love our buddy belts!! I already have 4 for my one single pup.
As far as how to get them use to walking.... I honestly don't remember. It just kinda happened. I put the harness on him with a leash and walked him. Over time, he got use to it. Sorry! I'm no help there!