Only utter noobs think like that. In life there is no such a thing as becoming rich effortlessly. In some cases you may have the luck and find something like Bitcoin in its initial stage, but even that doesn't guarantee you to become rich. If you buy Bitcoin at $1, you'll likely sell at $2 or $3 afterwards. If you buy at $10, you'll sell at $30, or 99% chance you'll sell before reaching $100. Early birds having held their coins till now are not focused on fiat, but on how to avoid banks and governments, where they may even believe that Bitcoin will become a mainstream payment/value tool. If the aforementioned intentions aren't present, just forget about it, you will not manage to accomplish the same result.
This was exactly what happened with many early holders of Bitcoin. Without the power to know exactly what can be, seeing your Bitcoin go from $1 to $10, the attraction to sell can be not so easy to surmount. Only those people who decided to just forget the Bitcoin they are holding are able to enjoy the fruits of richness today even at the current rate of around $10K per Bitcoin.