When are all restaurants going to have a vegan only menu?

With the trend in vegan diets growing exponentially by the day how often do you think waiters and waitresses get the "what is vegan?" question?  Most restaurants these days have added some sort of nomenclature to the menu whether that be a VG or a V or a little leaf but again many times it makes finding a dinner option a where's waldo type of occurrence.  I was out to brunch this morning with my wife and daughter and before we ordered we asked...

---

 if there was vegan specific menu and with a big smile the waiter said "Yes! ill be right back".  I am sure it is a huge relief for them and it saves everyone time and effort to sort through every other item that is vegan or can be made vegan upon request.  How long will it be before more restaurants start to produce there own vegan menu or at least have a dedicated section to vegan dishes on the main menu?  With the countless number of high quality restaurants out there that cater to all diets it is the little things that go along way.  I know something as simple as a seamless question free way to order my vegan brunch will continue to get my business all the time.  Are people starting to see this where they live?