Is a TAE socket still needed nowadays?

A TAE socket is still needed today as the termination point of the "last mile" as long as this comes into the house via copper. In a fiber optic installation, it is therefore obsolete. Future fixed network connections will no longer be realized tied to cables, but rather to accounts, which in turn come into the house via the internet connection: with Internet telephony, a virtual channel occupies a session, whereas in the TDM telephone network a physical line was still "occupied." That means a telephony connection provider no longer needs a dedicated "line," but simply uses an existing assumed network access. This is of course also terminated with fiber optic, but no longer via TAE.

So unnecessary and can be better replaced with a network socket! Thanks to you!

May I ask if that was done for you without extra charge? According to my construction service description, we also get a "telephone connection" (presumably = TAE) for almost every living room. I don't really see the great sense in that and would rather take a network socket for it.

We recently remodeled that. Our BU had 2 LAN sockets and 1 TAE socket in the service description.
We received €60 for the removal of the TAE socket. A simply wireds bread with ham LAN socket extra was paid €89.
Each net.

According to my construction service description, we will also get a "connection for telephone" (presumably = TAE) for almost every living room.