Some things are without obligation, but do free things exist?
A free shipping policy, is one way or another paid for with higher product-prices, lower salary and thus probably less quality personnel, lower margins and thus a less quality total product. Or something else.
Subsidies are paid for by other people, in a tax-system that relocates money via the government.
Is the sun free? Well, the price we pay for having this star so close to our planet, seems to be that the climate is continuously changing.
Is it free to breathe? In a world without pollution, it is. In a room with plenty of oxygen, it is. But what if there’s less oxygen in the air because we get rid of forests to fuel our fires and build our furniture?
It’s not that we all pay in currency. In the end, everything is paid for in a way, to balance the scale.
Let’s not take things for granted and every now and then put a penny in the bag, to balance the scale for someone else.