> I highly recommend this kind of simple toy for young children.
As a parent I very much agree. And for grown-up children too.
On my desk I have a small tin containing small wooden blocks and planks, arches, etc. I get lots of play value from them - when my thinking is blocked, or if I just want to fool around and not think at all. I'm in my mid fifties.
And over at my climbing club's off-grid climbing hut we have a big box of over-sized, home made jenga blocks. Pretty-much everyone plays with them: not only jenga, but also just building structures or giant domino runs or whatever.
We all need to play sometimes.
As an adult, I bought on impulse a set of wooden dominos intended for domino runs. It included a few other props. It was on clearance for almost nothing because the box was damaged.
With friends and family on occasion (individuals ranging in age from 27-70) , multiple hours have passed setting up and playing with this domino set.
I really believe that play is vitally important at all ages.
Encountered these miniature wood marble runs in Switzerland. Still on my “wish list.” Sounds like you may enjoy them, too.
https://cuboro.ch/en/