Pedantic
Legend
Yeah, but that is its own cost. You're trading fidelity and depth of gameplay for ease of use. Which is fine, but not free, you now have less decision points and less places for players to interact and less unique emergent situations.Well, as soon as a subsystem is needed, I'll have to look it up, read and understand it - at least if I want to use it. Either I have to do it preparing a session (investing my time), or, if I didn't know it would come up, I would have to halt the session to read up on it.
To me, this seems like a much bigger burden than just using the core system that I already know.
That position is as strawmanable as the much derided set of college textbooks. Why have a book? We already own coins, heads you do the thing, tails you don't is already a perfectly cromulent resolution system.
There is an actual tradeoff between writing more complete rules and not doing so. You could set the terms of that balance differently, but when you decide to go ahead and read up on the cost of commercial goods for your player's new shipping enterprise, you're not spending that time for no gain.