Several of my friends are millennials (I am 61), they have families, houses and jobs. They work very hard and do not expect handouts of any sort. Their parents, like those from many generations, are willing to help them out if need be.
They do not, however, adhere to one political viewpoint and are willing to see gray where I see black and white.
I really believe a lot is in the upbringing, too. Some Millennials raised by liberals are functional but still unhappy. But you’re right, there are many that accept responsibility for themselves and are outstanding people.