Having an obese child is morally indefensible.
It should be no surprise that childhood obesity is a huge problem in America. There are many problems with childhood obesity;
-lowering life expectancy
-increased likelihood of heart disease
-early onset diabetes
There are no sound moral arguments for allowing your child to be obese, there are excuses among them;
-poor public school lunches
These excuses fail to defend the morality of the parents in question. Parents have the duty to take care of their children including their diets.