I was a fat child op, I'm 30 now and kids at my school were not fat back then, I was the only fat kid I knew and school was absolute hell for me.
I was obviously called fat, invited to a sleepover so kids could see how fat I was (they told me this and I could still cry thinking about how cruel that was). Kids thought it would be funny to send valentine's pretending to be me so that the popular boy would be so disgusted he had to tell me that I was fat and made him feel sick. Those are just some examples but I actually just got used to being bullied for being fat.
My self esteem has always been low and still is, although I am no longer overweight, through healthy eating which I only discovered in my early 20's and cycling everywhere.
As an adult looking back I wouldn't say it was neglect as such, my mum was very poor growing up and feeding us was how she showed love I think. When I was 5/6 I went for tests at hospital to see if my weight gain was medical related and they said I was just eating too much.
I wouldn't have 1 biscuit, I would have half the packet. If my sis ( or anyone for that matter) didn't finish their food I was always encouraged to eat it because I liked food and I was the fat one.
I was picked up and dropped off from school everyday and had very little strenuous exercise, I would dread pe in school.
When I went to uni I started walking everywhere and the weight started to drop off and I when I started cycling I became toned for the first time ever.
I despair when I see overweight children, I hope they are not living the hell that I am but I think times are different and healthy eating is taught and encouraged as far as I can see and things like, the daily mile sound great for getting everyone involved.
I think the easy access of junk food is definitely to blame but more help should be available to anyone who needs it.