But bandwidth is extremely cheap in 2025 to the point that I do not even check my bandwidth usage and I have never reached my 2TB/month bandwidth cap in the last 3 years.

Secondly, the p2p system will be advantageous for the videos that most people watch, i.e., popular videos. This implies that the "popular" video will have a large number of concurrent users who are transmitting a small part of video to just 3 other peers who are then transmitting the same part to 3 other peers.

This way, the bandwidth usage for uploading is reduced.