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!
Why? They don’t need to, it has NOTHING to do with business administration, and is, frankly a post dated skill. It wasn’t her job to write checks, it was her job to PAY BILLS, which in this modern age SHOULDN’T involve writing checks.