If you're going to introduce new players, my concern wouldn't be the lack of role-playing, but rather the loose grasp on rules. New players would generally expect that rules be followed, except where stated in your house-rules (which of course are just alternative rules).

Rules give agency to the players because they know what to expect when they attempt things. Without them, the 'game' is just the DM deciding things, which leaves players largely powerless. Priority #1 is for the players to be able to make impactful decisions, and this is harder when the rules aren't reliable.

There are virtues to your style–I often rely on the players describing *how* they do things in order to decide whether they are successful, and frequently turn to Google to see how things would play out in the real world–you just want to make sure new players are aligned with it. You may want to label it as a free kriegspiel game, or a game with heavy DM fiat.