How could adults be better?

I believe adults could be better if they listen to children,if they say important things.

Adults could be better if they stop fighting with each other,because their children will hurt each other.

They should stop smoking and stop drinking alcohol in front of their children,because their kid will get asthma.

Adults should not swear in front of their children,because they will copy them.

Most important way adults could be better is to stop telling off their children in public,

because it is embarrassing for their children.