Is sign lanuage for everybody?

Not really only for the people who wants to learn and use it for any bussiness purposes because one of my students really needs it because at school in daycare the little girl needs somebody to do sign language for them, they don't have anybody else to help her. So this was a example to help you understand what sign lanuage does for people around you, right now I 'am signing at my church and I'am the first one to do that for their church so they're grateful, you never know who's there that's deaf and don't have anybody to do sign language for them so if you know  what you're doing ask the preacher if you can do sign language while they preach and if he says yes do it because it's helpful.