Yes in addition to the lack of a front or back yard as mentioned in another comment, there's an increasing trend in city parenting to schedule the entire lives

Yes in addition to the lack of a front or back yard as mentioned in another comment, there's an increasing trend in city parenting to schedule the entire lives of their children, including "play dates". Not that play dates are inherently bad, but if you grow up with someone making all the social (and other) decisions for you, you kind of miss out on learning self-sufficiency and the ability to socialize with strangers. More suburban and rural parenting tends toward unstructured time, in my observation. This likely does have a lot to do with the home setup being more conducive to spontaneity.