They can have access in crypto currencies. Of course through internet. It's like some beggars will say " please donate me at this wallet" thingy. Beggars in the future be like 
We could have some of the hi-tech beggars as well who do not want to work and just want to sit and get money. So this would be educated beggars who know the technology and would create account and may even keep a board in front of themself where they will have a bar code available of their address and will state money accepted via bitcoin as well.