I dont think that crypto will replace fiat money it depends on the country if they will adopt crypto currency. At this point in time it is impossible will see in the coming years.

Ang ICO ay tinatawag na “Initial Coin Offering” kung saan ito yung mga bagong coin na ilulunsad pa lamang sa market kumbaga sa Stock Market and kahalintulad nito ay IPO o Initial Public Offering. Bale ang ICO ay iniooffer bago pa man ilaunch ang coin sa mas mababang halaga. Kaya nakadepende rin sa mga investors ang success ng mga bagong coins.

For you to see BTC address first you should download a wallet it depends kung which wallet you prefer tapos pag nadownload mo na ang wallet then explore it  you will see Send, Receive, Transaction buttons you click the Receive button then makikita mo ang BTC address mo.