Yeah, I don’t really care if it’s none. “Hey son, I know we’re both going to be tempted to look at porn on the internet so I’m buying us an application that sends random screenshots from our computers to each other to ensure we don’t consume any. Please hold me accountable if you see any porn on there.”
Like no, that’s the most charitable and honest version I can think of and it’s still not something you should ask your kid to do. Even if the kid was 40, it’d still be fucking weird. Like you have a wife. Or presumably a church where they’d probably gladly help you with this.
But also why do you need this at all? The whole covenant eyes thing just as a concept concerns me. It’s like if teetotalers had random breathalyzers despite never having drank. AA isn’t that invasive and they’re already addicted. They’re acting not only like porn is the most addictive thing in the world, but like you’re inherently addicted to it for existing.