Just wondering whether people have collars on their cats (I know this might sound like a daft question!). Reason I ask is that my parents cats have never worn collars and when they've tried to make them wear them they always managed to lose them within a couple of days.

We will be getting our kittens chipped before they are allowed outside but wanted peoples opinions on whether they would also make them wear collars (in which case it would be better to get them used to them now rather than later).