So give it to a homeless shelter so homeless people cant spend it on their phones they don't have.
The homeless people don't need a phone to be benefited from the donation, say for example, the bitcoin can be used for a charity organization to provide food for homeless people.
Honestly Bitcoin isn't about helping homeless people, anyone can fund raise for them. The benefit of helping homeless people which will get zero attention from anyone but the person exchanging the coin to cash vs some of the smartest techies on the planet. Id take the techies.