I am, admittedly, new to Bitcoin but this question never leaves me. If bitcoin is not a bubble, if bitcoin somehow makes itself the international standard currency, what happens to the people who never bought bitcoin? Will they be provided a timeframe in which they will have to exchange their money from traditional currency to the cryptocurrency before traditional currency is phased out and deemed worthless or will there be another method of transition?
To me, this question is not very meaningful. If we assume that bitcoin or some other cryptocurrency eventually crowds out fiat currencies from circulation all over the world, which is a very big assumption mind you, it won't happen all of a sudden or just within just one day. It will be a gradual process, kind of natural, when people will start receiving their wages and salaries in a cryptocurrency. This may take decades, so it shouldn't be an issue if it really comes to that. Though, I should say, I highly doubt we will ever live up to such times.