As I am newbie here. I am gaining knowledge daily about cryptocurrencies. I find less value altcoins with limited supply is the best choice to invest or we can check top 100 altcoins from coinmarketcap website. My choice is NEO, Stellar, Waves, Ethereum, EOS and DeepOnion.

I think its early to say world is ready to adopt cryptocurrencies. Even some countries are trying to regulate in their countries and some are banning cryptos. Crypto market is very volatile market until and unless it will be stable many countries are hesitant to adopt it but I can say one day many countries will adopt it.