I doubt if they consider what they do is in any way wrong and I don't think they would understand what MNers would find offensive - they are just as conditioned as the girls are, to act in a hyper-macho way.
I'm pretty certain the boys don't spend much time in school either. Just as an aside, young teen behaviour among males across the board in some sections of society, in Ireland anyway, is very similar to the grabbing, imo. This kind of behaviour is not limited to Travellers.
It's a hard life:
Wiki article that conveys the realities well.
'It has long been recognised that the health of Irish Travellers is significantly poorer than that of the general population in Ireland. This is evidenced a 2007 report published in Ireland which states that over half of Travellers do not live past the age of 39 years. Another government report of 1987 found:
From birth to old age, they have high mortality rates, particularly from accidents, metabolic and congenital problems, but also from other major causes of death. Female Travellers have especially high mortality compared to settled women...'
'...The birth rate of Irish Travellers has decreased since the 1990s, but they still have one of the highest birth rates in Europe. The birth rate for the Traveller community for the year 2005 was 33.32 per 1,000, possibly the highest birth rate recorded for any community in Europe. By comparison, the Irish national average was 15.0 in 2007...
'...On average there are ten times more driving fatalities within the Traveller community. At 22%, this represents the most common cause of death among Traveller males. Roughly ten times more infants die under the age of two, while a third of Travellers die before the age of 25. In addition, 80% of Travellers die before the age of 65. Some 10% of Traveller children die before their second birthday, compared to just 1% of the general population. In Ireland, 2.6% of all deaths in the total population were for people aged under 25, versus 32% for the Travellers...'