In this I don’t mean those of older children who may have learned the behaviour from friends, tv or computer games. I mean young children for whom the home is the most likely place they will have learned it.
I have just read an article in Edinburgh Live (on my phone so can’t link to it) where a mother is quite rightly worried about her child while the child is in nursery. The nursery is described as council run so the children are between 3-5 years old and likely attached to a primary school. The girl in the article is four years old. Two other children in the nursery have called her ugly and fucking pig, have pulled her to the ground by her hair, threatened to bring in a knife and stab her and left visible bite marks on her arm. Meanwhile all the staff appear to do is tell her not to play with them or ask her to go inside while all the other children are outside.
The behaviour of these children would be an immediate red flag for me and I would be raising it with the safeguarding lead.