I have an anecdote about doing exactly that. Always was a LEGO kid (first set I got was bought 3 months before I was born) and slowly over time collected a giant bin of pieces from all the various sets. Now as a much older adult, I actually find myself going back to that bin on occasion to sort out the parts and try to rebuild the sets. Much like how that big bin of parts let me build stuff from my imagination when I was younger, as a form of therapy, now resorting those pieces and reorganizing them is a new form of therapy for myself, and it all comes from the same toy.

I find it particularly endearing how a single system of toys can provide decades of experiences to a single human. I don't think I've ever encountered another toy that is like that on such a massive scale. Yes there's other construction toys out there that strive to do the same, Knex was another one that I was into for a while, but there's nothing that quite scratches that same itch that Lego does.