Saying they should immediately adopt it is as if you are forcing them to adopt bitcoin even when it's not their choice, with their assurance that bitcoin will make a new wave next year, which is not impossible but a hard target that might not happen anytime soon. What if you end up persuading someone into investing in bitcoin with the positive reaction that the volatility nature brings, and it ends up going in the opposite direction? How will you defend yourself in such a case? 
 
Learning about bitcoin is a nice one, but it should be a voluntary action, and the investors should not only be fed with the profit they can get from bitcoin, but they should also be aware that nothing is 100% certain; the price can drop that next year, or it can pump even harder.