I'm not sure what the value of shaming people's hobbies is. 3 hours a day is easy if it's your primary hobby, and likely double/triple that on weekends.

The business model of Facebook, YouTube, traditional TV, app stores, and yes video games depend on people not touching grass.

If you live alone by yourself such that the concept of a shared gaming system is entirely unimaginable, maybe you're the one that needs to touch grass