I think you missed the point I was trying to make, cos I dont disagree with any of ^^^^ that.
Using your example of smoking ad bans; before they were introduced, did parents give ciggies to their kids? Parents stuffing their kids full of crap is, to me, a similar "crime". Same parents most likely dont give their kids ciggies.
So maybe some parents do need to be told what to feed their kids, which to me, is odd.
Sadly, so many parents of this generation also had terrible upbringing, and this goes back quite a few generations. Hence the problems of obesity, Type 2 Diabetes, renal failure etc all of which are exacerbated or are caused by poor diet and lack of exercise.
The attitude of the Governments has been for decades to throw money at benefits and hope that it keeps things quiet.
I worked for 13 years as a Social Welfare Inspector, and it really was saddening to see the conditions in which families were living. Not from a poor level of welfare benefits, but from complete apathy to keeping their families well. Picture Onslow from Keeping Up Appearances. The Government answer was just to keep throwing more money at this significant section of our community rather than seek to really solve the core problems.
I am also uncomfortable with Nanny State mind you, wagging its finger, but the State could do more to help people to help themselves.