Point taken, John
But...
It is easy in this scenario to blame parents but the fact is that many people in today's society do not have sufficient knowledge or education to understand what constitutes a healthy diet for their children. Hence the attempts by Jamie Oliver to try to get a healthy diet into schools. All of this is exacerbated by the processed food conglomerates who are able to produce inappropriate packaged food very cheaply and make vast profits
I don't suppose Jamie Oliver has to sit next to them in economy though. Unfortunately, the rest of your statement rings true - the lack of education and knowledge. That describes 2/3 of the LoCo pax demographic. One great oldie wanted "flying for the masses" - he instead got flying with the masses