The term colour blindness can be misleading sometimes. Most people who are colour blind are not blind to all colours, but just have a colour deficiency that makes it difficult for them to differentiate colours.

There are many different types of colour blindness, but the most common is the difficulty in differentiating the colours red, green and yellow. This is called "red-green" colour blindness. Other forms of colour blindness are difficulty in differentiating blue from yellow, or where everything appears grey.

Mock strawberries

Mock strawberries as they would appear to people with red-green colour blindness
Roughly 1 in 10 men are fully or partly colour blind, meaning that one of the three types of colour detectors in their eyes is either faulty or missing altogether. The condition is hereditary and sex linked. Fathers will pass the gene to their daughters, and not their sons. Mothers can pass it to all their children. However, because women can be unaffected carriers, men are at least 20 times more likely than women to develop colour blindness.

9% of men and 0.5% of women are colour blind.
I'm part of the 0.5%. ):

But there is evidence that people with colour blindness are much better than average at certain jobs. They are very good at finding green things hidden against green backgrounds, such as grass or leaves. They tend to find things by shape and get less confused by camouflage. Because of this, colour blind entomologists still catch lots of bugs and in wartime, armies prize their colour blind snipers and spotters.

Geography is the way to go!
I'm more than determined than ever that I'm going to work in the parks in future. Maybe NParks, so I'll be in the reserves often.