The Travelers are not Roma/Gypsies. They are descended from a group of similar people in Ireland. The Roma have a genetic link to India. The Irish Travelers are descended from the Irish but now form a distinct genetic group. Roma and Travelers have separate languages.
My first exposure to gypsies or "gitanos" in Spanish, was when I was a kid living in Spain when my dad was stationed there in the Air Force in 1957-60. The gitanos would travel around the country in wagons and wore distinctive clothing. We lived in a small town outside of Sevilla and they would camp just outside of town. We'd see their camps when we took the bus to school.
Our Spanish landlord told us to stay away from them because, while they weren't exactly dangerous criminals, they were shifty and not to be trusted. They were petty thieves. Flim-flam stuff. None of them worked because with their reputations, no one would hire them. They always wanted something from you. That is where I learned about the gypsy culture.
Before I retired to Florida in 2011, I had my own business in Arizona. I frequented a hot dog stand set up in the parking lot of my office building and got to know the owner/operator pretty well. He had done a wedding for some gypsies who hired him to park his cart outside the reception hall and give away hot dogs to anybody in the 3-day long wedding celebration who wanted them. He said the reception was a drunken, brawling party. He said he made a good profit for the 3 days. But the hotel where the party was held, didn't fare so well. They'd taken a $5,000 deposit up front, with the balance of $20,000 due when the extended reception was over.
Well, not only did they not get the balance on their contract but the gypsies had done north of $80,000 worth of damages to the rented space. Chandeliers were destroyed, walls had holes punched in them, the carpet was a disaster and had to be replaced, bathrooms were destroyed and more. They went after them for the contract balance and damages, but they were gypsies, and no where to be found. Phony addresses, phony phone numbers, etc, etc, etc. The hotel took it in the shorts. I'm sure the catering manager was fired over the whole mess.
So from my experiences and other stories related to me, I do not have a good picture of gypsies or various other groups similar to them, whatever they called.