Not really an AIBU but not sure where to post so excuse me.
My son has a friend (they are both 2) and the friend is constantly biting him and other children. I get on really well with the mother. We both work at the same company and live quite near one another. If we get a day off (usually most weeks) we see each other and we often see each other at Playgroup's etc. My son loves her son and they get on really well but it's getting awkward because after every play date my son has a horrendous bite.. usually it's very sore looking and sometimes his whole finger / hand swells up. They will be happily playing and then he will just got for it. She's a single mother and I know she struggles sometimes but this is getting out of hand. The problem lies with the fact that she doesn't really do anything when he does it. Because it's become the norm.. for example today he went for another child at the library group and stated biting her. My friend just pulled her son off and said no and oh I'm sorry he bites at the moment. I know I can't say anything and it's not my place but is this normal for a two year old and should I say something?! It's just getting awkward doing play dates as I'm scared my son will get bitten again! Thanks for reading.