There was a fair deal of “rules of order” style rules in early D&D.
Ever hear of a “caller”? That was the special player in early D&D rules who got the privilege of telling the DM what the party would do. It did kind of help with big groups, actually.
Better that than being stuck as the “mapper.”
Hope you brought your diamond dust!
You can also safely check with Vicious mockery. The spell can target any creature, but only damages the target if it can hear, which “inanimate” things cannot.
On the other hand, Dissonant Whispers causes the target to hear (rather than hearing being a precondition as it is with Vicious Mockery) and with this you can kill petrified creatures, thus ensuring no spell casters return them to flesh-and-blood, without damaging the statue.
You’re not dead when you’re petrified, either, which can lead to some pretty interesting exploits, rules-as-written.
Petrified creatures count as creatures, not objects, so rules-as-written you can determine if a statue is a petrified creature by trying to target it with a spell that requires a creature for a target.
With the cantrip Poison Spray, you can check for petrified creatures without using spell slots or risking damaging the creature, since it would be immune to poison while petrified.
This is just another way to out yourself, gamer.
Mappers had to look listen to the description of the DM and try to draw a “good enough” map. Very easy to get things mixed up or one square off, and have to erase and redraw. “A doorway to the left” can be confusing when you’re are heading south and it on the right of your map. Or maybe the DM means the left of the map?
Bear in mind, there was often treasure hidden in secret rooms, so knowing where the unexplored space was could be pretty important.
Once in a blue moon there was a player who got a thrill from that, but most folks hated the hassle.