Yes the plastic bags should be banned because they cause a lot of harm to the society.when we throw food with plastic bags covered animals eat then with cover which is toxic n may lead to death. when the plastic bags are thrown on the ground they doesn't go inside even after many years.the rain water falls on them and does'nt reach the ground . it doesn't allow water to penetrate into the ground.
when the plastics are burnt a bad odour comes out which is very harmful to us .