They complain about teens shouting at them.
Complain about teens disobeying them and not doing what they want.
about being rude.
about sneaking out.
about answering back.
about everything.

when it's just 'do unto others what you want others to do unto you'?

if they dont like teens shouting at them, then they shouldn't shout or scold at their teens, instead, talk to them about the problem.
If they dont like teens disobeying them and not doing what their parents want, then they should give time for teens to do what they want.
if they dont like teens being rude, then they shouldn't be rude to their teens as well(ex. going into their rooms without knocking)

if they dont like teens sneaking out, then they should let their teens go wherever they want IF you trust them
etc

does this makes sense?
just came into my mind.