but most sandboxes are little places that match your description connected by railroads. That's gotten even worse with the advent of MMO"s. I see more and more games designed that way by young people that grew up playing MMO's and can't fathom it being wide open. But again if the players are enjoying it that's not really a problem, it's more of a design choice.I don’t see that at all. The whole point of a railroad is you are promising the players total freedom. Now you can also have linear adventure if you want in a railroad. And you can have sandboxes with roads. But the ideal is full freedom to explore and smash the scenery. There may be some boundary of course. But that is usually very expansive (the boundaries in my setting go all the way out to heavenly and infernal realms)
I'm not arguing what a sandbox should be I"m arguing what most "Sandboxes" I've been show over the last 15 years or so really are.