The thing is, aggro, yes - I can understand there are enough neanderthals on both sides who think having a fight is a pleasant way to pass an evening. I don't understand it myself, but hey, I last raised my fists in anger in the schoolyard. However, when innocent people are being attacked, this is very different.Don't think anyone's saying that you shouldn't take children to a football match, but perhaps if you are taking them to a derby, between two teams that haven't met for 8 years, you should be expecting a bit of aggro.
Trouble at football isn't exactly a new concept, I don't condone it but I also don't see the point of whinging and moaning about it. The more you do, the more it marrs the result, and what was a brilliant game of football.
People want to watch their team play, and for most it is about the day out and the 90 minutes of competitive action. It is not about being caught up in a warzone.