Firstly people need to be aware of that japan is introducing bitcoins as their currency .well it need to make much progess as the confirmation takes a lot more time , as their speed is not so fast .maybe their will be a option to pay for bitcoins but very people will use it .
Yes your right, if japan already accepts bitcoin as their payment method they must introduced it the people in their, like posting in social media or a word of mouth. Well in this case, yeah it takes a longer time to become to become perfect i mean in progress and also i think when their speed is not fast as they expected, well it is normal since they are just started accepting bitcoin as their method of payment