Gaming companies contributed to the death of LAN parties too. They killed the "split-screen" gameplay that would support 2-4 players on the same machine. They wanted each player to require their own copy of the game. They killed LAN support, forcing you to play on their servers. Culturally we saw a shift towards social isolation. People are more comfortable talking over a mic.
I'm happy about the death of split screen gaming. It was just an awful experience. Especially when your friends were screenlookers
As a kid split screen adversarial was common, and the screen looking was never really an issue. If someone was better, you'd play 1v2, 1v3, or 2v2 with the best and worst player on the same team.
If you were at a LAN party and were too good, then it was you and the worst kid on one console vs 4-6 kids on the other 2 consoles. Haha good times.