I lived on a busy street growing up, and our cats lived long lives.......I moved to a less trafficked area when I got out of college and lost a 7 year old cat. That was 14 years ago and it still causes me guilt to this day......now, I have 2 indoor cats, and a 3rd that goes outside for 5-10 minute supervised outdoor trips (he also went missing but came home after 13 days). Not judging you....just providing my experience.