Bitcoin is actually an alternative, decentralized payment method. It is low-cost and almost instantaneous. There are some reasons why people should use Bitcoin instead of cash.
1. Bitcoin is the currency of todays generation
Bitcoin is actually made for the todays generation - The Internet-Generation. Now the generation of paying bills by using credit/debit cards or cash has gone. Bitcoin is very lower in fees as compared to any payment option. The best part of the Bitcoin is the transaction is very instant and it can be accessed through the dozens of bitcoin wallets. And above all unlike credit cards bitcoin offers a very secure transaction and saves you from any type of frauds or identity theft.
2. Fast, Secure transaction globally
There are no selected areas where you can use Bitcoin. You can use it globally or lets just say wherever you go, to send value instantly or without any cost you can surely use Bitcoin. Without any bank or third party transfer, you can send as much value as you can and even it costs you just a few pennies.
3. Privacy plays a major role
If you want to understand the transaction privacy of bitcoins then let's take an example of Facebook. When you upload any pics on Facebook it asks for a privacy option like whether to post your pictures privately or publicly and the same thing happens in Bitcoins. The transaction history of Bitcoins can be searched by anyone but it depends on you whether you want to keep your transaction private or not.
4. Freedom of Finance
If you dont have the bank account then also you are allowed to do the transaction. There is no specific rulebook for bitcoin. It's an open financial protocol.