The real question is, of course, how many RJ45 structured cabling jacks do you have in your kitchen? Wifi's all very well, but you'll regret it when your IPv6-enabled fridge drops off the net every time you use the microwave
The house has TV aerial cabling to every room; there are five cables emerging at one point (presumably where the sat/freeview box sat. We have no interest in TV.
When my parents' house was rewired I stressed the importance of such things (do it once, and do it well). TV coax
[1] and phone wiring to every room. It was just before twisted-pair Ethernet went mainstream, of course.
Turns out that you can run 10base2 Ethernet over electrician-quality 75ohm coax surprisingly well if you keep it to single point-to-point links and play fast and loose with termination resistors.
I fully expect that in the unlikely event of ever owning a house, I'll fill it with cat8 UTP five minutes before everything switches to fibre.
[1] I come from a family of television-as-wallpaper people, so it made sense.