"The average cost to install a kitchen is around $60,000."
An ordinary home kitchen? That is ... quite a lot.
I am in a different part of the world, but I still managed to equip a home kitchen with reasonable-quality appliances (no scraping the barrel, mostly Bosch and Whirlpool) for some 4000 dollars in 2019.
Unless the talk is about some big ass mansion, I cannot imagine spending 60 000 USD on a kitchen, the very price of the materiel used does not add up to even tenth of that value even if you choose mid-range stuff.
You can have a nice 300 x 60 cm wooden counter for like 200 USD.
> Well, every room tends to have walls and floors.
And every room would be equally judged against its economic value. It could very well be that having an maintaining your TV room is more expensive than going to the movie theatre as well. If you were designing a domicile based purely on optimizing cost, as posed earlier, it is very likely that it wouldn't be anything more than a small bedroom, with everything else more cost effectively provided by outside third-parties at scale.
But there is, of course, more to life than numbers. A small bedroom and nothing more does not seem like an overly desirable place to live. Being able to watch TV at home is nice. Being able to cook at home is enjoyable. However, the topic is what it is and as a result those factors don't matter for the purposes of this particular discussion.
An ordinary home kitchen? That is ... quite a lot.
I am in a different part of the world, but I still managed to equip a home kitchen with reasonable-quality appliances (no scraping the barrel, mostly Bosch and Whirlpool) for some 4000 dollars in 2019.