Most Helpful Guy
Funny story about that actually. In earlier times (say the middle ages) in Europe Red used to stand for royalty and pink which is kind of like a lighter red used to stand for masculinity.
So yeah its just easier to wear whatever you want to wear. That said I am faaaar to depressing and boring to wear pink.2
Most Helpful Girl
There are better colours out there for men if they wanna look more masculine but some do pull it off. Its just that nowadays pink is considered girly, so feminine is what tends to come to mind, even though the colour used to be considered masculine.