Bitcoin is used through mobipe phone, becuase it can easy of you have a wallet bitcoin you can able to used in any transaction. Like in my country. We have a wallet that called Coins.ph, in that, you can able to send money and recieve, and paybills as easy. You dont have any hasle in terms of payment method. And you can able to withdraw or deposit.
Trough in our country, you can do that easy, hasle free. I hope they can create another wallet and have more feature. To increase and incourage people in our country to used bitcoin.