Just to add to the point on 'the kid's' celebration. It was in response to Haaland asking him 'who are you?' in the first game. Dish it out, expect it back and all that - I thought Haaland actually reacted pretty well to it. I don't think City fans should be critical on the trolling from Arsenal as it was inevitable they would do it after what Haaland did in the 1st game. I'm not sure you can sit back and criticise that and not criticise Haaland in the 1st game although obviously fans will support players of their own team.
Re the kids coming through, Lewis Skelly's long term position is as left midfield. I can see him as England's left back pretty soon. Ethan Nwaneri who came on and scored is the higher rated talent, he's only 17 however the top prospect is a lad called Max Dowman who has just turned 15 but is already training with the first team - he's rated as a Lamine Yamal- level prospect but obviously that doesn't mean he'll turn out that way given his age.