B/X Known World
You’re right. I was giving far too much credit to rulebooks. It’s orders of magnitude easier to get people on the same page when starting fiction-first instead of rules-first. Thanks for the correction.The legwork is not the same.
There are questions everyone has to answer like are you using supplemental stuff, banning things, and such, but things like how long does it take to pick a lock varies by game and can be defined by rules.
5e does not define how long picking a lock takes or what happens when you flank. 3e does. Opening a lock in 3.5 RAW is a full-round action. Done. The benefits of flanking are defined in 3.5. That leg work is done. 5e has an option in the DMG for flanking to give advantage, but it is a DM call so some legwork on making a decision. If the touchstone is just fiction then it is a straight judgment call, either figured out for the group ahead of time, or ruled on in the moment.
Different levels of legwork.