> Kids don’t even play outside anymore and I don’t think it’s because the market took away third spaces

I agree with this, but I think it reinforces GP's point that what's missing is time: slack in the day. I grew up playing outside with all the neighborhood kids, and the critical enabler was that there were always adults around during the after-school hours. Not actively hanging out with us, or even closely supervising, but around. Some of them (mine, but only for a few years), were stay-at-home mothers, but by no means all. One family had a dad who got home early from work. Another kid we couldn't play at their house certain days, but we could others, because their parents had variable schedules.

There were also more kids around, because families back then had more kids than they do nowadays. I think that's also (not entirely, but to a significant degree) a consequence of adults having less time - across their life-cycles, and in their days - that isn't devoted to work.

No ones' parents did gig-work, or worked two jobs. Most parents were 9-5, or maybe 8-4 (or I don't know: I was a kid, and not paying attention to things like that), but no one went to "after school care", because there were always adults around after school got out.

Hell, I think the need for third-places (for kids) mentioned in the article is a down-stream effect of the increased time pressures on adults' lives - as is the disappearance of third-places for adults.