Oldest dd is 12, 13 in May (Year 8). She's always been lovely, a really easy child, well behaved, a pleasure to have around.
But I've noticed a real change in her attitude lately. She's starting to find lots of things annoying, people's eating habits, the way they breathe/sniff etc and commenting on it. She's always been close to her next youngest sister (21 months younger) but I've noticed her making nasty comments to her and throwing her weight around. Dd2 adores her older sister and gets very hurt with her comments. Dd1 says dd2 is being 'annoying', certain things she often says or does.
I made the point to dd1 that we ALL have annoying habits, herself included, but it's not good manners to constantly point them out.
Meanwhile dd2 gets upset and complains to me that dd1 is being mean. I know a lot of it is probably hormones (dd1 started her periods a year ago) and I suppose normal teen stuff.
But how much do you pick them up on attitude/bad manners/nasty comments? I don't want to constantly nag but I also feel it's my job to teach what's acceptable and what's not...