Sandhurst has a travelling community from when they were labourers building the Reading-Redhill railway in the 1840's and settled in the area and there was also quite a lot where I lived as a kid in Ash. Like all communities there are good and bad, the bad end up in the news & take part in scripted tv programs for which they are paid, the good ones get on with their lives and you don't hear about them.
A friend of mine started off worked as a groundsman at Sandhurst college, where he is a par golfer he then used to be a caddy at Wentworth and now does a traditional travellers job of buying and selling building materials but he always gets a signed receipt from whom he has bought them and another one from who he sells them too. He has at times been stopped by the police, but because he has a paper trail, which at times the police do check he has never been in trouble with the law. Hes got three children his boy did a 4 year plumbing apprenticeship and then after about 12 months working as a plumber got a job as a trainee surveyor and took the exams so he is a chartered surveyor. His eldest daughter was a top sales person at Thompson Directories until they closed a few years a go and her and her husband now organise corporate training courses and his youngest daughter works as an office administrator and started that career at our local council headquarters. There the sort that you don't get to hear about.