The beauty of the bitcoin is digital figure and its use through online purchasing and payments against services etc. So, I think we should have to provide internet for to make it common and I think there may not be a single country who do not have the facilities of using internet, even internet is almost present everywhere.
Sure for online payments, you wouldn't use physical form, obviously. But what if you are paying at a restaurant? Will you wait approximately 1 hour because they want 6 confirmations? What if you just happen to be in a store and there is no internet access? Will you wait until the internet comes? I never said we should go 100% into physical form. But it still brings some advantages. Actually, it brings a lot. I think adoption would also be a lot faster if BTC would also be represented in some secure/fair/transparent etc. physical form.