If you can't afford internet, how are you supposed to go to Panera or Starbucks? It's one thing if it's a choice, but, for instance, a TON of job applications are now totally online.
Not to mention what might happen if you have no transportation!
You don't need to purchase anything in these places although usually I grab a cup of coffee for $2 while I'm there. But then library is usually free and in almost every town.
If you have no transportation, it gets tougher but you have to get to work somehow so hopefully you are near town/an internet source.