People who don't what to follow this tried and true approach of solving smaller problems usually don't want problem to be solved at all.
Transaction fees for bitcoin rose to what, 50-ish USD during the December madness? (when the network was saturated).
Just imagine the network congestion if all of Venezuella's business start using bitcoin to settle their transactions, even if they're batched into large amounts. No way 7 tx/s is enough.
Worrying about coffee seems unrealistic, "let them have a cake"-like thinking.
And buying coffee is just an example for small transactions that most people rely on, people want to do small penny transactions all the time to buy food not in bulk but as they need it. Buying in bulk is usually bad not only because it's happening due to the failing economy but also because it leads to more spoilage and rotten food being thrown away. That's bad for the environment.
They also need pencils, toilet paper or the odd USB cable.