Some people don’t want to join the 21st century. Doesn’t mean not being able to write a check is a bad thing. Time marches on, different skill sets are needed. Knowing how to setup an EFT on your bank’s website is a much more useful skill now than writing a check.
A person with an MBA should know how to write a check. It’s really not that hard and it’s still a very common business practice. Especially when it was HER JOB to write checks to vendors!