When you become 25 years old you hit some sort of existential point in your life. You’re still young, though not as young as you might think you are, and are virtually standing on the doorstep of the rest of your adult life. But the realization that I might be getting old really hit me when I figured out the age of the EU. Or better: the European Union as we know it since the Maastricht Treaty. Yes, we can both celebrate existing a quarter century this year.