[quote=@Penny]
There would be little theoretical difference between changing hair color and editing the gene which causes a genetic disorder. They are both physical features and it is simply genetic information. This seems to unduly privilege visible physical features. 
[/quote]
I agree.

[quote]How is 'I felt like it' any worse than 'its just random'. A child's feeling on their features are emergent in either case. If your kid hates the way it looks you can just throw up your hands and say 'hey its just the luck of the draw'? [/quote]
In most cases I believe the child would feel better, yes. If they even asked 'why do I look like this' which is hardly on people's minds because with no technology such as this, it's nearly a non issue. 

[quote=@Penny]
I'm still not sure what your trying to say here and how it is in anyway relevant other than as some sort of weird dystopian aside. The parents choose to make the child (hopefully). There are all sorts of decisions they make that affect its future success (diet, maternal age ect) how is hair color suddenly a bridge to far for parental control? 
[/quote]
I could be confused on your point. Wasn't your logic "why is it bad if it theoretically does not negatively effect the child?" 

Although I re-read your quote. This is my point. 
[quote]There are all sorts of decisions they make that affect its future success[/quote] 
While I, myself would still be uncomfortable with it. I wouldn't be against it on an intellectual level if it was for the child's betterment. If changing their hair or eye color would increase the success of the child, then I'm all for it. It was when the parent fancied something regardless of how they thought the child felt was when I was against it.