I don't think the high risk should go to Appelbees either, but there are necessary things they must do and the risk should be as mitigated as it can be by everyone. Kids going to school increases my risk of getting sick when I go to the store. They aren't my kids, but their behavior impacts me. I think they should go, but they should probably stay out of other public places until this is over. I'd say kids, because they are less likely to follow guidelines than anyone are likely to have a lot of asymptomatic carriers among them and once they contract it increase the risk of transmission to others.
There are a whole lot of people who think they should just do whatever they want and if they give some one the disease who dies from it, it's just some sick or old person who would die in year or two anyway and nothing could be further from the truth.