It does looks simpler but unlocks several footguns: order of edge cases,edge cases deeply nested within other condition with different context, early return th

It does looks simpler but unlocks several footguns: order of edge cases,edge cases deeply nested within other condition with different context, early return that doesn't reset some mutex/setting/return condition. Before blindly rewriting, have a mental picture of what is context/state at the point of early return, which at each time has to achieve the goals of function, setting background states/data points/return pointers/etc. Its easy only in simple functions.