Why does OpenGL use degrees instead of radians?

Question

The OpenGL designers were never afraid of mathematics, and knowledge of linear algebra is essential for all but the simplest OpenGL applications. I think it can safely be assume

Answer 1

Code is easier to read, it eases learning curve for newbies and allows quick hacking.

As stated already - degrees HAVE advantage - humans are better used to degrees, compare: 0.78539816339744830961566084581988... to 45 degrees for example :/.

For advanced uses of OpenGL you provide your own matrices anyway.