Not since I was in elementary school

But here, at least, metal ones are being phased out for plastic
Which means static shocks are the joints on hot and dry days

Since I went to school in northwestern Oregon, most of our days were kinda overcasted, so the playground didn't get like that too often.
My friends and I still go to the playgrounds when we walk around at night sometimes.

Same on the OR
Most of our playgrounds are out in the open.
But alot of them are also plastic not metal anymore.

There's gotta be a logic to why they set up playgrounds the way they do. I have no idea what logic that is, though. Maybe open spaces and metal is more clean? I mean, I've been around little kids, and they are noooot clean.

One fun thing I've done with metal slides is use water and wax paper to speed slide down the thing. One of my buddies used to live near a park with this huge slide, and that's what we did once (I think some neighborhood high schoolers came up with the idea). That was ages ago though; they don't have that slide anymore, unfortunately.