I believe that people start up cyrptocurrencies because they either want to make some money or maybe experiment with the internet. It's basically like when a scientist test run a new gadget. It still is amazing how these cryptocurrencies live though. What do you think?
There are a lot of reasons why many digital currencies are made every year, one of them is making themselves earn money from their invention. Helping other people is also one of the reason why they made their own coin. Bitcoin is not a perfect digital currency, so they made another one that can compete with bitcoin or will fill the holes of bitcoin. They also made another coins that depends on the efficiency or the need of the user, having those coins will really be something that users will want.