As a non Brit living in Australia, I blame the food culture that is wrong from the baby stages. So many wean their babies with melts puff, baby crisps and other baby junk foods hooking them on ultra processed foods preferences.
There is also this culture to leave the house with food in bags and cars, eating when walking, at the beach, sport events, fried-everything, snacks beyond the age of 10, and just so much junk.
so Much processed meats. Everyday there is ham or bacon or burgers or sausage in one meal or more. Crisps and other snacks which in France are strictly party food are put in school bags.
people here eat too much and too much of the wrong stuff and too often.
Most don’t eat as a family at the dining table but in front of tv or in bedrooms.
The takeaway culture is insane. Fatty greasy salty stuff.
Whenever we go to New Caledonia it is so easy to identify the Australian dropped from a cruise ship because they will open a Doritos bag the second the towel is on the sand whereas a French will open a book. They seem unable to go two hours without food.
I also blame the fact that in UK and Australia, kids are not followed by paediatricians but by overworked GP who are not well harmed to talk development physical and emotional , and put a child on the scale at least once a year until late adolescence.
I see an obsession at blaming carbs which I find funny because we went on a six month emergency placement in Japan and the local staff who eats white rice three times a day was so so tiny.
From my experience, having lived in many countries, the more a country hates carbs and shouts protein over and over again, the bigger it is. Nobody has issues with carbs in Italy, Japan, Vietnam, or even Monaco from where I am . But we don’t eat cake out of a packet. We go to patisseries and eat it seated with a child or SO and savour every morsel of fine baking.
we embrace food quality over convenience.
It is the food culture. Period.