Here's a fact that reframes this: about 95% of Paris 2024 venues were existing or temporary, yet organizers still had to build a new aquatics center and athletes' village because the existing stock simply couldn't do the job. So even the best-case "reuse" Olympics needed some new construction.
My opponent's concern about empty stadiums is real. Billion-dollar white elephants are a scandal. But the answer isn't a blanket ban on new venues. That's a blunt rule for a complex problem. Some cities need a modest, permanent facility that serves the public after the Games, and an existing-only mandate could force them into worse compromises or exclude them entirely. The smarter fix is strict legacy requirements, cost caps, and independent audits, not pretending every host can work with what it already has. The other side is diagnosing a real disease but prescribing the wrong cure.