I see that a lot of people depend upon Roadside assistance and a cell phone. The one time I had a flat, I was VERY lucky. We were in a spot about two miles long that HAD cell coverage. I now as indicated in a prior post carry a spare and the equipment to make the change, Not everywhere has cell service or a reasonable response time. The one time I needed it, it was a 4 hour wait! But I also understand that not everyone is physically able to do the change over. As I get older I realize I will not always be capable, but having the equipment and the mounted spare makes the change over easier for the good Samaritan that might happen along.