Comment by chadgpt2

No, the main reason is because NAT is terrible and restoring the end to end principle is important if we want the internet to stay not separated into server networks and eyeball networks. If we want to decentralize the internet it's necessary that eyeball machines can talk with each other, not only with servers. This ability reduces the possibility of surveillance.

When IPv6 was designed it was normal for each IPv4 address to be traceable to someone's desk. Fortunately, as that changed with IPv4 so did it with IPv6, so we got IPv6 privacy extensions.