My DD and my friend's DD go to an after school activity once a week, so my friend and I do alternate weeks - one week I take the girls to their class, the other week she takes them and I look after our DSs. My DS1 and her DS are both 6. They are not best friends, but they get on OK.
I'm a bit taken aback by how competitive they are. Anything they play with is accompanied by a constant stream of 'I'm winning', 'I'm beating you', 'that didn't count' etc etc. I hate the idea of my DS1 being like this - do you think I should try to step in and stop it, or is this normal for 6yo boys?