1 day
Requiring specific characters reduces the number of permutations. The only thing that makes a password more secure is increasing the minimum length. As the OP suggests, enforcing special characters makes most people just put a special character at the end. What you have effectively done is make the last character so easy to guess that it might as well not exist.
The taste that coffee adds to things is great, and the smell is amazing. A bad brew tastes like bitter dirt water and has the same effect on your stomach. I’ve never had a good black brew in my life.
I do love me some coffee milk, but at that point we are right back to coffee adding flavor to things, not being good itself.