hi catso,
I am not sure if you included me in the bracket of not preventing him viewing undesirable web sites... but just to qualify my position
no a child should NOT be allowed to view bestiality, s and m etc.... but he should have the opportunity to view some sites. and if it is a sexuality issue, which I am sure many 14 year olds go thro but never get a chance to explore as they are suppressed, feel confused, ashamed, worried about, then there needs to be sensitivity about it.
I am sure that mom is very conscientious, otherwise the posting would not be here, so I see both sides, and if I was to take sides over it, I would take mom's every time.
I hope it gets resolved amicably.