Oral Chinese communication in sixth grade primary school: How to persuade someone who steps on the lawn?

I would say to the student: "You can't do this. Every grass is alive. When we play on the lawn, there are countless lives planted under our feet. Countless grasses will die under our feet. If everyone thinks like you, there will be less green space in the world! If you don't step on the lawn, there will be less! The most basic morality, so please stop playing on the lawn and destroy these innocent little lives!”