I totally doubt this is true personally. I started raving myself in university in 2002 and see more raves happening now and have more friends who are ravers than back then...
I also see more electronic artists playing gigs all over the world, more people getting into DJ'ing or electronic music production, and there are more EDM artists getting hugely popular in the mainstream, see acts like Fred Again.
I also see more electronic artists playing gigs all over the world, more people getting into DJ'ing or electronic music production, and there are more EDM artists getting hugely popular in the mainstream, see acts like Fred Again.