You can use it every where and anywhere, without exchange it.
And how to use transaction with it, if bitcoin just crypto currency?
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Of course many bitcoin will users will become reach those who keep and saved bitcoin for a years, because the price value will surely skyrocket increase of that happen.
Price will definitely go higher in future once the adoption level also goes high and bitcoin is already an international currency as all the users from different countries are using it and soon it will reach to all those places where people are not aware about it yet.