Not sure what you mean by "the West" but here in Western Europe we have have lots of protection for old buildings.
In the UK they're referred to as "Listed Buildings" and are protected by law.
We also have a strong heritage cultures e.g. things like classic car clubs, historical farm displays, etc.
I can't comment on Japanese homes but I can tell you it would be pretty easy to find examples of a 500-1000 year old houses or pubs still in daily use through out the UK .
It used to be the case that Japanese cars were bought new with vehicles exported after only a few years of use, although I believe that this has lessened somewhat now.