I am trying to raise my dc with a healthy attitude towards food. A balance of nutrition and treats. I was raised by a single mother with an eating disorder, and although I don't have any overt EDs myself, I am overweight and trying to set a good example to my dc towards food and overall health.
We live in an area where a LOT of the children at my dc's school are quite obviously eating crap on a regular basis. Every afternoon, I see the parents doling out crisps, chocolate bars, fizzy drinks, lollies, etc etc. My dc tell me about the contents of their friends' lunches, and it's basically the same stuff. 
So this is our family culture vs influence of the outside world - their friends and neighbours think nothing of shovelling crap down their dc's throats at every opportunity (yes I am being hyperbolic but it really does feel that way sometimes!).
Although on the surface, my dh supports my efforts, he sneaks treats all the time once the dc are in bed. He has a stash that he keeps in a cupboard and pulls it out almost every night. I used to join in, so I'm not perfect
I am just getting tired of having to fight against this barrage of junk food at every turn! Friends sharing with the dc (how sweet!), cakes being doled out at school (leftovers from various charity fundraisers, for example), neighbours bringing bags of sweets for the children when they visit (how can I say no to them?!), and with Christmas on its way I just feel like everything is going to ramp up to the nth degree.
My eldest dc is 14 and her bed time is later than the little ones. Dh has now started sharing his stash with her and I am pretty furious about it. I've spoken to him before about NOT FEEDING HER JUNK but last night they had bowls of icecream before I could come down after settling the baby to bed again.





Dh is overweight, doesn't care. I'm overweight, but working damn hard to change things (was doing great before baby came along, so at least there's a good reason, but spent many years "obese" before making an effort). Our dc are normal weight, but I am well aware that I can't control what they eat outside of the home and it is so frustrating to have to undo all the damage that other people inflict on them.
Like I said before, I'm not against a treat once in a while. But this is turning into a daily, often twice daily thing! I can't even treat my own children when we go out or have a fun night in, because they've already had a constant influx of sugar and junk for the past week and a half that I have no control over.
tl;dr - I feel like I'm the only person in my dc's lives that actually cares about their long-term health and wants them to have a normal relationship with food. No obsessive EDs. Not being overweight. Enjoying good food and realising that treats should only be eaten once in a while, not once (or more) a day!!