If all paper money were change into Bitcoins, can it be access and use by everyone? how can the beggars access Bitcoin?
Your first question is "If all paper money were change into bitcoin"?
Do you think that it is possible the all paper money will change into bitcoin? It is impossible thinking and in real it will not happen, so forget it.
Secondly you are asking beggars can access bitcoin?
Actually i see normally Beggars have no access of fiat money that the reason they are beggars then you are talking about bitcoin, only educated people can access the bitcoin.
Anyone is welcome to join Bitcoin and no degree of discrimination is displayed in the team. However, in my honest opinion it may sound difficult for beggars to access Bitcoin not because they are incapable of doing so or due to zero knowledge about its nature, because I still believe that their societal status does not define their intelligence and future. The challenges are on how we can educate them properly, to get their willingness, and to make them embrace technology and the functionalities of Bitcoin. On the other hand, we can in any way make campaign and workshop for these people to truly show our sincere concern and care for them that we are here to stand by our integral vision which is to help those in needs in making difference in people's lives for them to survive from poverty and giving back our blessing to the community.