Now I'm going to start with the positive argument and the main argument is that this gives homeless people some money and something to do so if you have time or have run over your data cap you can give some change to a homeless person which helps them but then they give you the wifi password meaning you get something in return. Also it was recommended that people paid £1.30 ($2) for 15 minutes of wifi meaning the homeless would possibly get a lot of money out of this and it raises awareness. People are saying also that some homeless people have nothing better to do and will make money and also if there are no health risks, what's wrong with that?
This plan doesn't come without its fair share of flaws. People are saying that this plan turns the homeless into tools for internet and turns them into "walking slaves" meaning they are just on the sidelines and some people predict they will be seen as a service provider and not a homeless person. They are also potentially more prone to getting beaten up because they have something relatively valuable and the homeless are easy to steal from (not that i have any experience).
These are just my view points and if you feel differently please comment below and I will put it under consideration when I think this through again!