Suburbs are good for families, it gives the kids plenty of space to play. Though, with people no longer having kids, they are kinda pointlesss.

Space to play, but nowhere to go. Everybody has their own private space which isn't great for social interaction. Kids have to be driven everywhere which isn't great for families

Cities have shared parks. I don't have any yard. But I have wonderful parks within short walking distance. There are far more amenities and so much more to offer at public parks than private yards. It's a shared backyard

In the suburbs, everybody has their own play structure in their back yard. In cities, we have bigger, better play structures that more kids can use simultaneously which encourages more social interaction.

I'd say there are upsides and downsides. The kids have room to play, but do you have to drive them to see their friends? Or are they close enough to walk or ride their bikes over there? It depends on the neighborhood.