I have absolutely no confidence in this. "family-friendly" is extremely context and culture specific. You'll get lots of people actively trying to push the boundary for fun.

On the weird extreme of that are the Spiderman/Elsa videos.

On the cultural extreme is Mr Rogers washing feet together with a black friend.

Are we going to update the filters with time as well? Or would we get stuck with no toilets or flushing forever?

There's a lot of old movies in my country where the nudity happened and it was extremely matter-of-fact - for example people go for a swim in the ocean so they're naked while they change. Those movies are way more family-friendly than what this filter would accept.