Do engineers drink coffee in Your country?
What is averange cost for a cup?
Perhaps I am just lucky - average price 0.000 per cup.
Except for my first job (at a computer manufacturer), I've had the luck of working at places where an employer-supplied coffee pot is always available. At two places I worked, coffee is the "single serving" type machines that also produce tea and chocolate types of drinks. I can understand my first job at a computer manufacturer w/o free coffee, you probably don't want a readily available cup of liquid to spill.
I think it is as much company culture as job culture. As far as I can recall (again, except my first job), when I worked at or visited the overseas branches in both Europe and Asia, free coffee pot is always available. So that culture appears to cross nationality boundaries.
I should also note, even with free coffee at the employer's dime, some folks would prefer to buy their own Cola/pop-drinks at the vending machine. While the drinker claims this is the way they get their caffeine, but I suspect they are just trying to fit in when everyone else has a cup of something-to-drink in their hands.
I've more to say, but I got to go fill my cup... That is far more important than yapping to some strangers I've never met.