Originally Posted by 22B
I assumed everyone did this associated the same colors with numbers that I did. I was surprised to learn that others not only didn't have the same colors, but didn't do this at all

This is how my son was... I heard about it and I said casually to DS one day, "DS do numbers have colors?" He said "of course..." and rattled off a bunch of numbers and their corrresponding numbers. He became self-conscious at my surprise and amazement