So parents forget to parent, blame someone else. Google even made a kid friendly version for those parents who really must put their kid on youtube (I am not knocking it, its a great distraction) so it is up to the parent to guide their children. Its just like teaching the kid about fire, you dont give them a lighter and let rip. If the parents are concerned about Google's standard service acting like Google's standard service then the parents need to think for a moment and hopefully will see the problem.
Or it will be Google's fault because Google bad (but still gonna use it).