I use bitcoin and my reasons is give me profitable, secure, and low fees. Bitcoin also not neet id verifications, to make wallet and fill not more than 30 minutes.
to me the main reason is that as the new generation trend it toward online business and shopping, therefore bitcoin is so much convenient for them as they can use bitcoin without changing it into any fiat currency, as having same value everywhere,
Not same value there is exchange has low rate to exchange it and bitcoin is unpredictable they are just using bitcoin because of low fee unlike other payment processor.. this is why some company or shops online are accepting bitcoin because of less fee than the other payment method..
And many some rebates promotion that we can get unlike in other payment method..
The good thing is many local exchange that you can exchange your bitcoin instantly in to fiat.. that is why worldwide can use bitcoin as good alterntive payment method online.. not good as local currency because there is some places that has no internet..