My gf is a waitress and in school, and if someone tipped her in bitcoins i would be furious, she has no way to use that. Its bullshit you try and push what you use on other people, forcibly. It's no different than going to another country and forcing them to take your currency and not use the local currency. Its a bunch of crap. If you can pay for the meal in fiat, pay for the service in it. Don't leave someone hanging on bitcoin because you think you're clever, you are only fucking them over. People pay for their lives in fiat, her university sure is hell not going to take bitcoin, nor should she or anyone else without their chosing. They dont need some shit they cant use making it more complex. Use legal tender.