If restaurants and hotels aren't open, where are tourists supposed to sleep? Visit relatives or camp? AirBnB seems less safe to me than chain hotels because hotel chains have implemented housekeeping standards and procedures. And how will they get food? Regular hotel rooms don't work with self catering, and many people staying in suites or apartments wouldn't want to cook all the time on vacation. Plus, often part of the fun of a vacation is going to great restaurants. Others associate vacations with bars, pubs, and clubs, and some destinations in Europe are (in)famous for this.