I really feel bad for you. Niall, the male cat, goes outside during the day, and I'm always afraid he will get hit by a car, or shot at. A lot of people don't like cats. He was a stray, and whenever anyone opened the door, he ran out, so I gave up. Lizzie is also a stray, but she has never been outside on her own. So far, she likes the indoors. She's around 6 months old.
Last night, Niall was out until almost eleven. I was sick with worry, just like when my kids were late. Wish I could keep him in, but the vet said to let him go, that he would most likely give up on life if he was housebound. Some cats are like that.
Good luck with your cat.