I'm not referring to the price of Bitcoin (we all know it's going to be $250,000/coin by 2022), but the goal that it would be a legitimate alternative to inflationary government fiat currencies.
legitimate or approved by the government is not the goal of bitcoin. The main objective is to allow people to transact among themselves without these transactions being controlled by the government and banks. The aim is to enable monetary freedom. On a certain scale, bitcoin has reached its goal.