I'd personally like to be able to simply hand some of my golds over to a noble in the same region that I'm in. I can think of several ways a Lord could do it easily in their home region with guilds and other similar work arounds.
(It's also a minor issue that you can't give golds as bonds in cities to other nobles from other realms. Yes no modern banking, but a sack of gold is a sack of gold no?)