A lot of it is put down to not playing out as much but I don’t believe that has as much impact as some think. I was a fat child, so was my sister. I was very active, played out constantly, rarely watched TV and was always out on my bike.
I put it down to 2 things. Firstly my mother is a feeder. She equates food with love and we were always given massive portions, plus something like a chocolate bar as a pre-bed snack. Trying to refuse an offer of food from her still results in a lot of pressure. One won’t hurt, have another etc
Secondly, we ate what DM could carry home from the local frozen food shop, lots of chips, breaded chicken and the like. If my DF had bothered to get out of the pub and out to a local supermarket she may have had more options but that’s a whole other thread and she couldn’t drive.
My Dsis has gone the same way. She overfeeds my niece and she is really overweight but her appetite thermostat is now set. She can’t see it though and thinks she’s just a naturally big girl.
I have been very aware of it and tried to always feed the DC what they needed with plenty of fruit and veg, not too much junk and limited snacks. I have always battled with DH as he always moans at them to clear their plates and I hate that. Just let them eat what they need to be satisfied.
DC1 is very active and self regulates naturally so is very slim. I’d say at least half of her friends are significantly overweight though. DC2 is the opposite (lazy arse) and definitely chunkier but ok still at the moment.
It’s such a complicated issue. It’s a matter of education, time with many parents working full time and being tired, awareness because obesity looks normal to us now, dietary advice changing constantly, money, so many things. And portion sizes are significantly bigger everywhere!