I think cookery programmes on television put people off cooking. All the recipes are so complicated, they use so many ingredients; many not easily obtained and they put a lot into presentation.
It would not be good television if they did quick simple dishes using 3 ingredients, a stock cube and herbs, cooked in the oven and then served with boiled rice and roast root veg.
The same applies to cookery books and recipes in magazines, too many ingredients, too many instructions. I love food and I am always collecting recipes. The first thing I do is remove or replace many of the secondary ingredients and cut the stages by half, but I can do that. I have the knowledge and skills. Many people do not.
I will not say teaching children about healthy eating at school is pointless, but children learn their eating habits from the food they eat - and most of that is prepared and served within a family context.
From the age she was capable of expressing a food preference DGD's favourite food was salad and she use to raid the fridge for it. As soon as she started school, she began to say she preferred chips, they were an occasional treat at home, and rarely served at school (healthy eating) but that is what other children said they preferred and ate a lot of at home.
Healthy eating and simple recipe books should form part of ante-natal services.