North Andover Sidewalks

I called the town of North Andover offices the other day to find out if it was a law for homeowners with sidewalks in front of their homes to shovel after a storm. To my surprise, it is not. The gentleman I spoke to said that they would "hope" that people would be responsible and take care of it on their own as it's not the town's responsibility either.  I live in the Rock Road/Berkeley Road neighborhood and there is only ONE house on all of Rock Road that takes care of his sidewalk. In the last three years that I've lived here, not ONE of the others on Rock Rd. do anything about it. There is this one person, photos attached that has a path for his dog that he used his snow blower for but couldn't be bothered to go 12 more inches over to take care of the side walk. There is a school in the back of our neighborhood so there are children here that are forced to walk in the middle of the street to get to school. For me, the danger comes when I have to walk my dog in the morning and afternoon. Where there are sidewalks, I most definitely use them when they are clear. When I walk down Rock Rd., I too am forced to walk in the street. Will it take a dog or a child to get hit by a car to wake them up??