As of now we need to do the best to circulate the cryptocurrencies. Adoption keeps increasing when users get more access to use it as a currency. To me, the growth needs to start from the base. Every small scale business people who are cryptocurrency users need to accept bitcoin, which is the one that makes the community grow.
Keep educating the people around your surroundings, take seminars etc so that they can become aware about the crypto currencies and how does it functions, how can they buy/sell, their advantage and disadvantage etc. The more you indulge with people , more and more will come through word of mouth and start buying.
Have to explain them well and helping them to open up their mind for this great opportunity. But we can't push them neither if they don't want to learn and listen to us. Basic introduction towards crypto will be just enough and it's up to them if they'll need more help and to guide them for investing.