My ex's (father of my daughter) brother has two daughters (15 and 9) with his long time partner. All three ladies/girls have varying degrees of mental disability. Both of their parents have had surigal intervention to lose weight rapidly because their health was bad due to obesity.
Both girls have always been overweight. Once a week we all meet up at the grandparents house for a bbq and this is where I notice the older girl in particular helps herself (in front of everyone) to extremely large portions, twice over. Today she had a total of 4 pieces of bread and butter, 10 slices of cheese (about the size of beer coaster each) 3 large bbq ribs (the full length ones), about half a kilo of potato gratin (in two trips) two hot dogs (no bread) and then for dessert two portions of ice cream (adult portions) and some strawberries plus a total of about 500ml of sprite.
She's only just 15 and I can see her ballooning. This is typical of the amount she eats every time I see her. No, I don't know what she's eating at home but I do see she's getting very big, very fast and I'm worried that once the weight is on she will never get it off again because she will not have the support.
All this happens in front of her grandparents. I monitor what my daughter eats there and if I think she's having too much I get told that she's allowed to eat what she wants at grandma's house. I told them there's a limit and I decide what it is because I am responsible for her. They didn't say anything more on the matter, but obviously these other two girls who are cousins of my daughter (the younger child also eats a lot but not quite as much) and I do NOT have responsibility over what they eat but I feel like I can see into their future and history will repeat itself.
I'm suprised their own parents don't reflect on the surgery they had to take in order to lose weight to spare their lives and try to protect their kids.
I don't want to start a war but I feel like nobody cares or understands what is going to happen to these young girls if nobody takes control of their intake.
So, should I butt out and let it continue, because they are not my children although they are my family or do I try to get support from another family member and approach the parents?
Or something else entirely?
Very much appreciate whatever advice you guys can provide as I'm really torn and maybe I should just mind my own business.