Those of a certain age, myself included, can hark back to the days of hard-line parental discipline which certainly kept me on my toes as a child.
Fast forward a few decades and most countries in the developed world have banned smacking children. I believe the science behind it is that smacking children leads to them thinking it is ok to be violent to other people later on in life. I'm not sure about that, maybe they're right, I don't know.
What I do know though is that lack of discipline at home, where it should all start, at the parenting stage, along with what kids currently see and hear on their computer games, TV, radio and social media on a daily basis, well all this can't be good for them.
I've never ever laid a disciplinery finger on any of my kids. My 11 year old son is a cheeky little so and so, he pushes me regularly. I look back and think of what would have happened to me if I'd have been "clever" with my dad, and I know for a fact my clever mouth would have been "addressed", and that I would think twice about what I said to him in future.