By the way Aggie:
As far as never being wrong, it is not a matter of right or wrong. Obviously you are bothered by Travellers, the trick is what to do about it. There are two ways, generally of dealing with clashes of cultures. The nazis attempted to rid the world of those who offended them, British society has attempted to force complience with cultureal norms, both did not end the clash of cultures. In the US, an accident of rual development "cured" the clash of cultures on the issue of dumping. Other clashes still exist here, such as the unwarrented arrest of Romani people in the US on pretextual charges to racially profile the community...
As to not paying taxes or contributing, that is not always true, and contribution to society is not always messureable in the same way. Some of the ways Travellers have contributed to your society has been, just one example of many, the invention, very early on, of many of the methods of recycling, long before it was an issue for settled people, in fact precious metal reclemation for Romani people goes back centuries, basicly panning the waist from gold and silver smiths. Today, Roma in the US are responcible for much of the silver relcamation done to waist photo products. This silver, if not removed from photo fixer in shops all over the US would be poured into the ocean if not for the intervention of Romani people. Most of the pavers and painters I know, keep careful records and do pay taxes as well, by the way.
So, anyway, it is not about being right or wrong, it is about being open to learning. The fact that in earlier posts it is clear that you know something of Romani people and may even have read the Fonseca book, Bury Me Standing, is not a bad start. But, I would hope you don't pause on your travel to understanding.
Cheers
Larry