They have everything on their cellphone or tablet, Millenials are very different, they have different custom and thinking because every kind of information is accessible to them, I think Cryptocurrency will make it easy for Millenials to make money and make more profit, than any modern generation, because they can easily understand how the modern technology works, these are created for them to enjoy.
The millennial generation is without a doubt going to accept cryptocurrencies with ease because in a way cryptocurrencies are similar to other technologies that millennials are already using, however I am not so sure that millennials are going to make a lot of money with cryptocurrencies, the early adopters were most likely not millennials, they were people that were older and that have been thinking about the possibility of something like bitcoin existing for a long time, so it is likely that millennials are only now noticing bitcoin and while there are still profits to be had those profits are not as spectacular as they were in the past.