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This is not a good idea. Bitcoin price i too volatile to pay for goods and services with it. The demand will create itself through time, when mining of BTC will get harder and harder.
why not ? yes its true that bitcoin is too volatile but lately its volatility have been slowly decreasing or in short bitcoin has gotten stable due to the recent crash . therfor , implementing bitcoin as a payment method will now be a good idea because merchants wont know have a hard time to adjust their pricing from time to time . buyers on the other hand will also find it easy to use thier bitcoins due to the reduced fees caused by the recent market crash .