Because professors are teaching those tools, which means students are more comfortable with them / know what they are.
This isn't CS fundamentals, but, at least for a good portion of CS 1 classes taught at my school, and all of the CS 2 and data structures, Visual Studio is what people are taught, with the OS X users typically using XCode.
I don't know if it's better to start with IDEs or just basic text editors and compilers, but I know a lot of CS majors are going to be coming out of my school without knowing how to compile and run almost any program without clicking on the green run button in their IDE.
This isn't CS fundamentals, but, at least for a good portion of CS 1 classes taught at my school, and all of the CS 2 and data structures, Visual Studio is what people are taught, with the OS X users typically using XCode.
I don't know if it's better to start with IDEs or just basic text editors and compilers, but I know a lot of CS majors are going to be coming out of my school without knowing how to compile and run almost any program without clicking on the green run button in their IDE.