they can get bitcoin in paper form like what you get when using Bitcoin ATM.
pieces of paper with public and private address after that they can import the private key to any wallet "just show the private key to any scanner" and get the money.
Important point
you must have some knowledge and internet access to use bitcoin.
Well maybe can access bitcoin through the information from friends by the help of others too. We are not oblige but we are accepted to join to become a bitcoiner. Bitcoin is open to each and everyone. All are prospect in answering those possible questions that may apply to the real world and related to all topics to our economics. So in that time beggars are rrally allowed and they can access if they knew.