Well, I must admit that I do that before one year, but now I wash my hands even when I finish with my meal...
Usually most of the people when there at home don't practice to wash their hands, because some have problems with the soap or simply they don't take it so serious. But, washing hands in one of the most important things if you like to keep health in good condition.
I hate the soap and I prefer to use when my hands are really dirty. So, I wash my hands every time when I go to toilet or in the kitchen but, most of the time I do that with hot water. I practice this for whole year and I don't have any problem.