This post is wrong on so many levels..
Cryptocurrency is the easy way to become rich if you get yourself employed in it.
Did you buy a cryptocurrency and turned rich from it? If so, then consider yourself lucky to be among the very small percentage who also did. But telling someone it's the easy way to become rich is deceiving.
Cryptocurrency is the exchange of digital currency to generate profit.
It is just a digital mean of exchange that is supposed to require no trust and no central party. The definition is much larger than that for sure, but this is the shortest one I can think of. Investors who purchased Bitcoin at over $15,000 would probably laugh out loud (or perhaps cry out loud) if they heard yours.
they didn't believe they can be rich from cryptocurrency until they learn about how a friend become rich with cryptocurrency.
True, because we all have a friend who became rich from cryptocurrencies.. right?
you use your phone to make money while you are at home.
Phones do not have a single thing to do with Bitcoin itself as a cryptocurrency. Only because there are online jobs today that pay you in Bitcoin does not mean at all that it is a "make money at home" scheme in any way. You can earn fiat just as easy online from home nowadays.