Buying cryptocurrencies is done with the expectation of profit.

The idea is similar to planting an apple tree today to feed your family in the future.

Crypto adopters looking for more than just value appreciation are usually drawn to the asset because it’s designed to provide financial independence. 

This applies especially to residents of countries in economic decline.

For some people, buying crypto is a way to support something they believe in. 

Just like in the early days of the Internet, there is the belief that the technological aspect behind blockchain is a revolution in itself.

All cryptocurrencies represent different blockchain projects. Each one usually offers a solution to a common problem. 
The vision of the people behind them and their communities can be a reason why someone would believe in cryptocurrency.