I mean hell, if you got people coughing all over the hands and trying to give you a high five while you are on post while doing sign ins in the entrance. Pretty difficult at this case, even my chief literally tells the co-workers to use it whenever because (inside joke) he wants people at work than knocking out sleeping at home feeling sick or excuses.
I use sanitizer almost compulsively at work too. Just remember: hand sanitizer is not a substitute for washing your hands, it's important to wash with soap and water often.
Washing hands is important to your daily life routine in general. It's the time frame of things for when you are on post or not on post. If I can, I'd prefer to use water with soap if I had to pick between that or Hand Sanitizer.