Our playgrounds were(they still are) larger and more accessible, than anything my current neighbours kids get on their 2a of land in rural USA.
Even the new developments in Eastern Europe provide a kid friendly courtyard. Shielded from all traffic and observable by literally the whole community.
Suburbia should be reserved for the insane rich people, that hate their neighbors.
When they have coirtyards, they looks lile prisons.
The HOA style rules are built in at the country border.
I have acres of woods _in my backyard_. There are also no homeless people sleeping on the benches.
I live in Prague, my parents in a nearby town. Walking 10 minutes gets me either to a metro station or an "urban forest"/heavily wooded park called Stromovka. I think it's a very appropriate for kids to play in nature. My parents have walking/biking access to similar places.
Not every place in Prague is this close to nature, but it's common enough that someone seeking that kind of housing can get it at basically no premium.
Mah suburbia people do not even grasp the alternatives they are missing
Offhand, from relatively recent experience:
Singapore and Hong Kong contain forests, and when living there I regularly walked to them. Hong Kong is more than half green space.
The east side of Cologne is around an hour's walk from a proper forest.
Central Salzburg is an easy walk from several forests.
Hiroshima is surrounded by gorgeous forests, easily reached on foot, where you occasionally encountered secluded temples along the paths.
Zaragoza in Spain. Walked from the old city centre to the edge of the city (which was apartment blocks) in a reasonable time. It was mostly agricultural land, but I recall some forest along the river.
San Sebastián, also in Spain. You can walk into the hills, but we went to the beach.
Parks covered in homeless people is a US problem, in my experience. I've been around most of Europe and haven't seen anything like that. The homeless problem in the US is a policy choice, just like the urban development is. It's easily solvable given political will.
Can you walk to a cafe?
It’s all about kids.
Without kids in the picture sure, go ahead, make cities look like Coruscant from Star Wars.
The instant you have kids you see how important open spaces safe enough for unstructured minimally supervised play are. Without spaces like this all you have are kids drooling on Roblox and YouTube all day. There’s nothing for kids in an urban core.
Those spaces don’t have to be undeveloped or even outdoor but I have yet to see a city successfully create an environment safe enough that I’d let my small daughters run around.
So while I agree that zoning is dumb and complicated, I also think it’s important to understand where people are coming from.