Europe holds on to its diversity in some respects and loses it in others. Some of the respects in which it has failed to hold on to its diversity are regrettable. But there are a lot of exotic differences, which is one of the reasons why we travel. When I first took my holidays in France as a young man in the late '40s, I could recognize French children by their tabliers d'enfant as they came out of school and the funny, particular sort of satchels that they wore on their backs. Now when I see children coming out of schools in Florence, they look like children coming out of schools in Akron, Ohio.