No, this is not the main reason why I joined the crypto currency. It seems to me that the crypto currency technology has a great future and it is necessary to buy it while we are given such an opportunity to buy at a low price.
It is not a "necessity" but it is gaining popularity in contrast with traditional monetary system. It may happen in a few decades that fiat is getting replaced by bitcoin or crypto in general. But then the technology behind bitcoin, the blockchain is getting acceptance in many fields of technology and finance. This is what is a bigger achievement for the crypto world.
A true trader is the one that follows his strategy when infront of the screen trading but not changes his mind as a result of panic because trade is going against him.
When you become a trader you will also know that getting emotional is what makes the trader weak both mentally and physically. Its more important to control the emotions.