You should invest in cryptocurrencies for a number of reasons. Some of the major ones are as follows.
Decentralization:
Cryptocurrencies are not controlled by a single central authority. Machines that mine Bitcoin and undertake transactions make up a major part of the network and all machines work together. Meaning, a single authority can't meddle in the monetary policy or make their rules for people.
Anonymity:
You can hold multiple cryptocurrency addresses and they are not linked to names, addresses, or other information that can identify you personally.
Transparency:
Cryptocurrencies give you anonymity. However, they store details of every transaction that you make through a huge general ledger called Blockchain. Say, you have a publicly-used Bitcoin address. Anyone can figure out how many Cryptocurrencies are stored in that address. But they just can't know that it's yours.
Furthermore, If you are not using cryptocurrencies now, you will certainly use them in the near future. Reason being, more and more businesses are getting involved in it and blockchain startups are coming up on a regular basis. And rest assured, blockchain technology is here to stay.