You get your point, but I'm positively sure many or most deaf people don't bring their own pencil and paper every time they go out. Every time I went out with friends, I don't ever seen them bringing it. Is it against the law? No. I also have hearing friends. Whenever they set up to meet with me, they always brought their own paper and pencil. I never asked them to, they understand the situation. That's respect.
Nobody asked us to have it the whole time. Heck, nobody even asked me to carry them with me.