Remember all the people who spent big money running CAT5 to all the rooms? Then we got in-home WiFi and all of that cabling was just forgotten.
Those folks just plugged APs into all that “forgotten” cabling and ended up with the best backhaul for their WiFi possible.
I dunno 'bout that- seems to me someone who knows enough to run Ethernet also knows that WiFi is a collision-detection protocol; I retrofit CAT6 into my current place just a couple of years ago, and while I have a mesh WiFi6 network at home (with Ethernet backhaul, of course) I also ensured all the TVs (most of them 4K) and as many computers as possible were on Ethernet.
We can't anticipate what will be obsolete. But fifty feet of ethernet cable or single strand fiber is quite cheap and easy to install during construction. Honestly, so what if it is obsolete in a decade? I doubt my parents are regretting the money they spent running now-obsolete POTS into their house in 1950.
Mains electrical and plumbing are about the only things that will remain as-is for a good while.
In your design my house would have around 40 drops, rather than 7. 40 makes no sense.
Yea, every one I've seen recently. Of all devices they are the number one device to put on a network drop as they will use more bandwidth more consistently than any other device in your house.
On my TV wall I had a singular network drop to the TV wall. When I built a faux fireplace for it, I put a switch there in the access hole and now have it split out between the TV and all the consoles.