Is car-free city centers a realistic goal for modern urban planning, or are we ignoring the practical needs of residents and businesses? I've lived in a pedestrianized zone in Ghent for two years, and while the air quality is noticeably better, elderly neighbors struggle with the long walk to tram stops. On the other hand, Copenhagen has shown that cycling infrastructure can cut car dependency to under 25% of trips. Do you think other cities can replicate that, or are such policies only viable in wealthy, compact European cities? I'm genuinely split on whether the trade-offs are worth it for places like sprawling American suburbs.