To me its the same as the thought about survivorship bias .... you want the best flooring material for the place that will most likely get the most damage.

https://en.wikipedia.org/wiki/Survivorship_bias

You seldom use the bedroom floor because all you really do there is sleep ... basically wake in the morning and walk on at night before bed. And you seldom bring anything serious into the bedroom like liquids, hot / cold food, drinks or cups or containers.

The living room has moderate traffic and again you don't really use it during the day.

A high traffic area is the bathrooms because everyone goes there on a regular basis.

The most high traffic area in any house will always be the kitchen because everyone is constantly working and walking there .... and it is always exposed to liquids, solids, spills, hot stuff, cold stuff, broken stuff, glass, ceramic, metal, pots, pans. And you sometimes have crowds of people there ... all working and basically scrubbing the floor with all those feet.

It's the reason why you should have the best, hardest and most expensive flooring in any house.

If you are going to invest in expensive flooring ... put it in your kitchen because that is where it will be most useful and last for years in your house. If you install cheap floor in your kitchen, you'll be replacing it in less than 10 years or even less if the flooring is really cheap. After you replace flooring two or three times, it would have been the same cost as buying one good layer of expensive flooring anyway.