Good points. No one thinks twice about signs in restaurants that say; No shirt, no shoes, nor service. Schools have required proof of vaccinations for other disease for years. Now , it seems, we have to go over the same philosophical ground again. From age limits for alcohol or drunk driving laws, to public sanitation, to one-way streets, we accept limits on being the concept of freedom to do whatever we want. There is indeed a price to pay for living in society. Our cultures and our laws have always prescribed and set limits.