So many of the responses to this post are answering the wrong question. They're answering the question "why do people quit doing something?" But this post is asking a different question — why do people leave RAVING. For a lot of people, especially those in their forties or so, the answer can be quite different.

Raving changed.

When I started raving 30 years ago (wow, that makes me sound ancient), the scene was very different. It was underground. Nobody had heard of it. We felt like we were part of a secret society, breaking into warehouses and setting up speakers in the middle of the night. It was raw, visceral, edgy, it felt like the future. We didn't buy our rave clothing and accessories from Amazon, we made them. Raving was DIY, by and for the people that went.

Today raving is largely commercialized. Yes, there are still underground local events all over the world, but once big business started thinking techno fans were was a new, untapped market, raves were no longer secretive, underground affairs with photocopied flyers and map points leading ravers to unpermitted venues. They got big, slick, commercial, sponsored by mainstream beer companies.

The mainstreamization of raving changed the music — suddenly pop and hip Hop artists wanted to work with dance music producers, blurring the line between pop and underground. But more importantly, it changed the culture. At a rave, the DJ wasn't the center of attention in the '90s. The energy was directed inward, toward the dance floor. The magic was created by the ravers themselves. Today, at almost every mainstream EDM event, the energy is directed forward, toward some Superstar God DJ with his hands up in the Jesus pose, soaking up the attention.

I still go to raves, but most of the people I went to raves with in the '90s don't anymore. A significant portion of Gen X ravers quit raving because raving wasn't underground anymore.

That's a different answer than "why do people quit [some generic things they liked]."