I notice children swear a lot in TV shows, e.g. on Stranger Things. (Examples for swears: SOB, screw you, showing the middle finger, etc.), I can't remember if they've said f**k yet. In a culture where kids their age are not allowed to say these things and are constantly reprimanded to "mind their language", how is it ethical for a TV show to have them say these things? It makes me cringe at least. I know kids that age probably know these words, but is it alright to make them say it?
Do parents or some sort of children's welfare organisation not object to this? Is there an age beyond which its OK to have kids swear for acting? Because I clearly remember an episode on Modern Family where Lilly (the actor was not more than 4 years old at the time) had to say f**k a few times. It was beeped, and the producers later clarified that they had her say "fudge" while shooting the scenes. So apparently 4 is too young. How high does that bar go? What factors decide it?