My child plays with two children who live near.
I am very good friends with the mum.
The children were playing together and we were doing mutual childcare, which was great.
But my child (age 7) no longer wants to be around the two children because they are mean to her. They will hit and be cruel and the mother doesn't really remedy it.
If it were my child I would make it clear in no uncertain terms the behaviour was not acceptable, but these children get told no then literally nothing else happens, they just ignore that and carry on.
It's emerged over time and got worse and my child doesn't want to know them.
How best to tell mum? Obviously she will be offended! Is there a best way to let her know my child will not be playing with her children? Or should I just let the children know? We will be spending time in one another's company, but I won't be putting my child around them specifically for play again, just the children will be present when me and mum are together, sometimes, but she won't be expected to interact - think seeing one another in the street or at the same venue by chance.
Any advice is appreciated.