+1. The addition of currencies (assuming the game automatically handles conversions from 10cp->1sp, etc) would be great for immersion, reasonable item prices (apples should cost like 1 cp, not 1gp), and would make finding gold at early levels more exciting. We should start out finding cp and sp from dead enemies, with gp being a rarer and thus more exciting find, and then throughout the game begin to acquire more and more gold as you face more powerful and rich enemies.
As opposed to how it is currently, where you start out finding gp and can end level 4 with tens of thousands of gp. I can only imagine that the party will have hundreds of thousands, if not millions, of gp by game's end.
Also, gold really doesn't need to take up inventory space. Just give every character a "gold held" attribute and automatically increment/decrement that when they pick up gold or buy/sell/trade.
Finally, BG3 has the potential to be an amazing resource for creating and running D&D campaigns. Having currencies that match PnP isn't the most important thing, but it definitely would help people directly adapt 5e campaigns using the expected (assumed?) BG3 DM mode.
