Hello @Beulah7
I think every host who hosts remotely should have CCTV or cameras at every entrance to their property.
Personally I wouldn't book a place that had inside cameras as they would make me feel uncomfortable as I would feel I couldn't relax inside. I know from other discussions on Airbnb forums that many other guests feel the same.
Remember you need to clearly indicate the cameras that you have both on your listing and in your home in line with Airbnb's policy for CCTV.