Having experienced living in the USA for much of my adult life, I can only say that one reason anyone would find something like this "offending" is for fear of a fellow office worker seeing this come up on one's computer and at once he is labeled a 'pedophile' or 'child sexual predator'. He would have no case to defend himself because in the USA an alleged 'child molester' is guilty until proven innocent-realistically once accused, it sticks for life. Right, wrong, or indifferent this is a fact and it is prudent for any individual to steer clear from any and all forms of questionable situations involving children that could render one's life hell for decades.