I started attending Alty matches regularly when I was about 10. I came on my own or with a couple of pals. I don't think that I ever behaved in a way that annoyed others around me, but maybe, a times, I did. I'm now in my 50's and have a season ticket; I attend with my son who is in his early teens. While sometimes the behaviour of our younger supporters can be rather irksome, we should be pleased that they want to come to watch Alty rather than support a Poem team. If ever I've felt the need to say something to our younger supporters (very rarely), I've done so and had a positive response.
If we're looking to quash inappropriate behaviour, we should maybe have a word with the one or two (adult) supporters among our cohort who insist on using the most offensive language to remonstrate with the referee, or oppo. For many, their behaviour will be far more of an irritant, yet we seem to consider that just a normal part of the match day experience.