A lot of things are implicit in the rules, for example that you cannot walk through a wall, even when there is no rule explicitly forbidding that. Common sense is to be used for how things would interact.
There is also this helpful tweet by Jeremy Crawford to support this in discussions with rules lawyers that ask for proof where the rules say so:
In D&D, everyday things — walls, gravity, bread, laughter — work the way we expect them to, except for when the rules say otherwise.
For example, D&D has magical effects that pass through walls, for walls are assumed to be impenetrable, unless you damage the wall itself. #DnD
However, Crawford's tweets are not official any more. I'm looking for something better. Is there any official rules text that supports this premise?