At the risk of sounding like I'm bragging, I'm the parent of twin boys who are now 15 years old - and we never let them do any of that stuff - such as kick seat backs, repeatedly bang into people, treat cues (or anything else) like a playground by climbing, hanging swinging on etc., talk inappropriately loud or at all where they shouldn't and so on.
Sometimes when I say that, people will say to me sarcastically, "Yeah, aren't you perfect."
No.
But my wife and I always made note of annoying kids before ours were born and we would say "I would never let my kid do that!"
Lots of people say that, but few actually do it when they have kids of their own.
We did.
Some others do too.