The main reason that I decided to put collars on my indoor only cats is because I live in a condo complex and my front door leads to a hallway. Sky used to door dash all the time and he's so friendly that he'd follow any one home. He'll still do it once in a while. Their tags have my address and home phone number on them as well as their names.

A lot of people don't think about checking animals out for microchips. I used to buy the fabric type safety collars but they tear them up by scratching them. Now I buy the leather/vinyl type and they seem to last forever. If all of my cats seemed stressed out by them like my Sunny, I wouldn't make them wear the collars because it's not worth it. They've all gotten used to them and Pearl and Ziggy have worn them since they were kittens. Once again good luck.