How do you manage it?
My dc, 6 and 3, will sometimes play nicely and it's a joy. But not an hour goes by without some sort of argument that I'm required to intervene in.
It can be low level stuff like "Mum he's sitting in my spot", to a full on fight that comes from nowhere then suddenly they are after whacking eachother. Obviously I do all the kind hands / we don't hit etc, but what else can I do?
Some days I genuinely feel like running away as they've driven me so mad, it can be endless.