In my country, many children aged 5 years are familiar with cellphones, and what they play on cellphones is always games. Unlike before when people of the same age spent so much time in nature with their friends. Today's young children really need to be supervised, because they are afraid that they will watch obscene things on their cell phones, and still innocently don't know what is right or wrong. And fear of ending up falling for the wrong thing.

What do you think, young children are already using cell phones? Is it good or not? Will it affect the surrounding environment?