So you are saying he is acting like most other Millenials.
Sorry but that's a ridiculous thing to say. I mean which ones did you have in mind? The military ones, the medical ones, the teachers, the volunteers? Each of us is responsible for the way we behave it's nothing to do with when we were born, though the USA seems to label people as 'millennials' etc more than anywhere else where we tend not to categorise people in that way, this is probably because the USA is the country of birth of the advertising industry.