I'm in Australia. My 6yo son attends the same primary school I did 30+ years ago. They now have a "nature play" area with softball-sized rocks and 6' long baseb

I'm in Australia. My 6yo son attends the same primary school I did 30+ years ago. They now have a "nature play" area with softball-sized rocks and 6' long baseball-diameter logs that the kids use in breaks to build forts, help climb things, etc. They use the rocks to crush things up or build structures in a dry creek. The hover-parent in me can see a million ways it will end in disaster, but aside from a bloodied fingernail and some scrapes, I haven't heard of anything too bad in the 12ish months he's been there. It's a definite trend here in designing play spaces for children.