Dear Student, Answer to your question is as follows : Conduct of their parents is justified because Crackers are harmful to the environment as they contain chemicals which are not conducive to the atmosphere. And at the same time they are dangerous and can cause burns and injuries. Also there are a number of children and old people who live and move about in the locality. Besides this, there are a number of animals like dogs, cats, cows and buffaloes who stay or roam in the area. They can easily get hurt by the burning embers lying all over the place. People burst crackers near the roads also which is not safe for the vehicles. Regards