Just confused! It doesn't make any sense.

What I mean by this is that the behaviors should be the same. Either you can punch and break both but it drops nothing, or you can't destroy stone blocks (Stone/Andesite/Granite/Diorite) and you have to get the proper tools before you can do so.

What do you mean, just the ability to sit there and punch stone items indefinitely, or specifically in reference to pebbles?

Not a bad point though.

It's that you cannot punch trees (because it's not realistic), but you can punch stones! Even though it drops nothing.