A lot has been written about the purchasing habits and lifestyle choices and preferences of millennials. Clearly they are different than other demographics groups and so it should come as no surprise that millennials tare shaking up travel as much as other industries.

Millennials in general are much more sociable than older business travelers, and are also most concerned about their personal safety, according to data in the CWT Connected Traveler Study, a multi-generational survey of more than 1,900 travelers from 16 countries.

A full 58% of millennials travel with others, 43% travel with colleagues, and 15% with friends or family. In stark contrast, nearly three-quarters (71%) of baby boomers travel alone. Sometimes, they travel with colleagues (23%) but they rarely bring along friends or family (6%). Generation X travelers are somewhere in the middle, with 58% traveling alone, 31% with a colleague and 11% with friends or family.

“We see a massive generational shift among the habits of younger travelers – the much-vaunted millennials,” said Julian Walker, Carlson Wagonlit Travel’s Head of External Communications. “Millennials are far more sociable when they travel, love technology and are most concerned about their own personal safety.”

The study found that millennials – defined here as those between the ages of 24 and 34 – are most likely to cancel a trip over security concerns. Nearly one-third (29%) of millennials have done so, compared to 20% of generation X (ages 35-51) and only 12% of baby boomers. Similarly, almost half (49%) of millennials buy trip insurance, compared with only 36% of generation X and 31% of boomers (ages 52-65).

Nearly half of millennials (45%) contact friends or family while traveling more than once per day, compared to 38% of generation X and 29% of baby boomers. Millennials connect more with clients while traveling (55%) than generation X (44%) and boomers (35%) – and with co-workers (41%) versus 28% of generation X and only 19% of boomers.

The use of technology also varies dramatically between generations. When it comes to connecting with family, boomers prefer to use their phone (51%), compared to barely half of generation X (44%) and only 39% of millennials. Conversely, a full 31% of millennials use Skype, compared to 24% of generation X, and only 17% of boomers.

When it comes to staying in contact with colleagues, email is everyone’s preferred method. However, here too, the generations differed markedly. More than half (52%) of boomer’s use email, compared to 46% of generation X and only 34% of millennials. When it comes to using the phone, 30% of millennials and 22% of both boomers and generation X prefer to pick up the phone and call colleagues.

So all things being equal, it is easy to see that millennials are shaking up travel and will continue to more than other generations.