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.
Anyone can access bitcoin if they are a good reader and a good listener to those who had many experience about bitcoin. BEGGARS can easily access becasue they can easily heared information to the people sorrounds him. Aside from that you can be a bitcoiner if you are registered and likewise you have your account.