From my experience the multi colored sections on the inside usually have a method to the madness. Like green bits on one side and red on the other which helps during assembly. They like to rotate the model a bunch in the instructions and it gives you some reference points. I’m sure some of it is cost savings as well. They just use whatever the most common color is for the brick. I agree with most of the other points. You definitely have to pick and choose the sets that are worth it.
For orientation you could use much subtler ways. There are models which look like a dumpster of random colors. For these it absolutely is only about cost savings, and I grew up from a time building 1300+ pcs models as a kid when Lego didn’t even have the colors for “orientation” and never had an issue. There are enough methods for orientation which don’t require using screaming lime and azure colors. There are enough shades of grey for that.
From my experience the multi colored sections on the inside usually have a method to the madness. Like green bits on one side and red on the other which helps during assembly. They like to rotate the model a bunch in the instructions and it gives you some reference points. I’m sure some of it is cost savings as well. They just use whatever the most common color is for the brick. I agree with most of the other points. You definitely have to pick and choose the sets that are worth it.
For orientation you could use much subtler ways. There are models which look like a dumpster of random colors. For these it absolutely is only about cost savings, and I grew up from a time building 1300+ pcs models as a kid when Lego didn’t even have the colors for “orientation” and never had an issue. There are enough methods for orientation which don’t require using screaming lime and azure colors. There are enough shades of grey for that.