My cat, Oreo, is about 14 years old iirc. Might be a bit older. Anyways, the past week or so hes been very bold and curious. We have cat doors so they can go in between rooms, but he's never been too interested. Hes wasn't scared of it, he just didn't want to leave my parents room. But recently we've all noticed him coming out a lot more and exploring. Tonight he just came into my room and checked everything out before returning to his area. He even went into a tunnel I have up for my kittens. I find that really strange, thatd be a really scary place for him since he'd be so easily ambushed. I guess what im trying to ask is, is this something I should be concerned about at all? Im really happy for him that he's getting more comfortable and out of that room, but at the same time its so sudden. Nothings changed recently that would cause him to want to start coming out either.