"sports arena" stands out to me as poorly defined. Do they mean a soccer pitch/baseball field combo behind a school? Not really an "arena". But surely nobody thinks there should be an indoor professional sports arena within easy walking distance in general, right?
Like, one is essential; people need access to physical recreation, but "arena" sounds like it needs to be a Big Deal of some kind. Like, sure, it'd be great to have a basketball court, pool, and ice rink all within easy walking access, but it's completely unrealistic except maybe at very high densities.