That's a hard one that all depends on what are the parental concerns and learning capabilities of the child. I find it hard to put a limit to human kindness of loving parents.
I can see wear this may lead to violations of the law and perhaps may lead to a overly zealous prosecution. And the thought that some sexual stimulation may happen on the care givers and things can happen.
I'm not for throwing the book at caring loving parents that have let these instincts over come them and violated the law.