Divination is one of those topics that can be touchy. I myself practice divination (predominantly in the form of card reading, though sometimes I consult the Yi Jing) and read for others and have noticed a tendency for people to sometimes begin relying far too much on readings and not on their own decision making.
From one angle, we can think of Divination as a means of clarification for complex issues: a complex obstacle stands before us, and we ask how to remedy or overcome such an obstacle. A reading can clarify that.
From another angle, we must remember that Divination is not unlike meteorological forecasts- various factors go into making the forecast, and the outcome deals with what is most probable and not what is absolutely certain.
I have to insert a joke I make sometimes about weather apps on smart devices and how I've had Tarot card readings that were "more accurate." It's a joke, but sometimes, it's described the situation all too well.
At this point, I'm having to draw a boundary and make clear for myself that I'll not do a reading for a person outside of once every two weeks. There are a few reasons for this, but most it's because two weeks is a good measure of a smaller cycle in a person's life.
All of this applies across the board- to cartomancy as well as astrology.
I think perhaps tomorrow we'll continue the discussion and speak more about cartomancy.