Soon, there will be a multi-trillion dollar wealth transfer (inheritance), and most of it goes to the millennial generation. All that wealth will have to go somewhere, and seeing that cryptocurrencies, especially Bitcoin, is quickly becoming a sought-after asset for the younger generations to invest into, there's a good chance it'll go there.
Even Deutsche Bank, one of the premier investment banks, and wealth managers in the world, are looking positively on Bitcoin's future.