My mother and brother confuse brown with green and my brother often asks me when in doubt about a colour.

That is interesting as I knew this is mostly common among males, not females, but it looks like it's not excluded.

It would be sad to see in black and white... with so many beautiful colours. But some people have no choice.

When you're born color blind, you don't know what you miss and I don't think you can lose the ability to see colors after you're born, so you're safe.