In my opinion, the money pouch wasn't actually a bad idea. The primary reason I dislike RS3 so much is because it became almost a completely different game overnight. If you were to stop playing the game for a few weeks like I did, you came back and had absolutely no idea how to play anymore. The introduction of the money pouch was actually one update that didn't contribute to this. It's a quality of life (QOL) update that is so basic to understand that if you were to come back from a break and see that it had been implemented, it would only take you a few moments to realize exactly what it does and how it works.
I would support something like this in Old School.