It s usually believed that plastic shopping bags are cause many environmental problems

While I accept that we should not be used it too much, I don't agree with the facts that plastic shopping bags should be banned.
Plastics bags are caused many environmental problems and it's affected really harmful to humans: it's cannot be decomposed, so we just burn it or buried it under the ground. But when we burn, it's caused many toxic gases so really take a bad effect to our respiratory.
However, plastic bags are used widely because it's convenient, lie, malleable and very cheap