I'm just wondering, how old does a kid has to be to use headphones?... I've notices some for children that limit the volume, but still, how old does a child needs to be to be able to use them?
I'm asking because we just came back from an overseas holiday (14+ hour in a plane) and was thinking DD may had more fun if she had been able to watch some tv (not that much to do in a plane) but didn't knew if she was to young to use headphones and was a bit frustrated with the cartoons with no sound... and having family overseas this may be a recurrent problem, but I rather have a upset kid than to damage her hearing...