what people use color contacts for?!

Color contacts (To change the Iris/Pupil appearance) are, from what I understand, completely cosmetic. They CAN correct vision as well (Like normal contacts) but other than that, any cosmetic features don't really serve any purpose other than to look "Cool".

Just because they want to look pretty... There's no other reason behind it. If you have vision problems, normal contacts are the best solution. They might not be happy with the eye color they were born with.

But I wear color contacts on halloween! Purple or red is soo cool!!! xD

They just want a different change in appearance. Mix it up a little. And depending if they have a vision problem, they could also get prescribed colour contacts.

It's cosmetic. It does not provide any healthy benefit to them.

Well for the same reason they do insane diets and get plastic surgeries done.....to look pretty :p

Change eye color to better suit them I suppose... Must not be content with the color they were born with lol