Well, it is very obvious that Bitcoin has attained its popularity all over the world. Say, if 1 person discovered Bitcoin today, he/she can share it with 5 people and  that 5 people would do the same to another 5 and would cause a big spread already considering the population of the world. However, despite of it being the 'talk of the town' few people still have the guts to enter because they are still not knowledgeable. So, I think what they need is education, just an overview and important facts about Bitcoin. Other stuffs can come in later and ca be discovered just like what I did.