Cutting costs down is what all businesses want, anything they are able to save money on, they will. Emailing pay checks and receipts lower costs, but not only that it means that you don’t have loose pieces of paper every where.
The paper costs money, the ink and the stamp to post the item (if needs be) its all added costs that the business can get rid of. The wastage of the paper is always bad for the environment, this not only helps reduce wastage and the environment at the same time.
With most people on email especially in businesses, it no harm and takes less time to print the document also.