Sorry didn't put it very well, I didn't mean you personally
I meant when there are big gatherings like Appleby (which I know you said you didn't go to) or at a big wedding or funeral (which round here the funerals are huge events with hundreds of travellers from all over the place arrive to pay their respects) that the senior family members or whoever the ones who organise everyone or who goes where etc that they could decide that the 300+ or however many people arrive from 70+ different families could discuss the way that they behave in the future so that the experience the general public have of damage/disruption/mess changes
Or even on sites like yours where the families can discuss the collective behaviour when the families leave the site to travel etc
They might then be welcomed each time they turn up in the towns rather than the locals being anxious and fearful of what will happen during and after they have had been "invaded" and angry about the damage and human "mess" that is left behind